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Wavelength- and angle-selective photodetectors enabled by graphene hot electrons with Tamm plasmon polaritons / C.-H. Huang, C.-H. Wu, R. G. Bikbaev [et al.] // Nanomaterials. - 2023. - Vol. 13, Is. 4. - Ст. 693, DOI 10.3390/nano13040693. - Cited References: 50. - This work is supported by the Higher Education Sprout Project of the National Yang Ming Chiao Tung University, National Tsing Hua University, Ministry of Education and the National Science and Technology Council (NSTC 110-2221-E-007-130-MY3; 109-2628-E-007-003-MY3; 111-2923-E-007-008-MY3; 111-2628-E-007-021; 111-2119-M-A49-006). This research was funded by the Russian Science Foundation (project no. 22-42-08003) . - ISSN 2079-4991
Кл.слова (ненормированные):
2D material -- Tamm plasmon polariton -- distributed Bragg reflector -- graphene -- photodetectors -- wavelength and angle selectivity -- LiDAR
Аннотация: Recently, two-dimensional materials have attracted attention owing to their special optical characteristics and miniaturization, with low thickness as well as extremely high responsivity. Additionally, Tamm plasmon polariton (TPP) resonance can be observed by combining a metal film and a one-dimensional (1D) photonic crystal (PC), where an electric field confinement is located at the metal–1D PC interface. In this study, a graphene layer combined with a TPP is proposed as a wavelength- and angle-selective photodetector. The graphene layer is located where the strong field confinement occurs, and the photocurrent response is significantly enhanced with increasing absorption by over four times (from 62.5 μA⋅W−1 to 271 μA⋅W−1 and undetected state to 330 μA⋅W−1 in two different samples). Moreover, the graphene–TPP photodetector has wavelength and angle selectivity, which can be applied in LiDAR detecting, sun sensors, laser beacon tracking, and navigational instruments in the future.

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Держатели документа:
Institute of Photonic System, National Yang Ming Chiao Tung University, 301 Sec. 2, Gaofa 3rd Road, Tainan 711010, Taiwan
College of Photonics, National Yang Ming Chiao Tung University, 301 Sec. 2, Gaofa 3rd Road, Tainan 711010, Taiwan
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
Siberian Federal University, 660041 Krasnoyarsk, Russia
Institute of Imaging and Biomedical Photonics, National Yang Ming Chiao Tung University, 301 Sec. 2, Gaofa 3rd Road, Tainan 711010, Taiwan
Institute of Photonics Technologies, National Tsing Hua University, Hsinchu 30013, Taiwan

Доп.точки доступа:
Huang, Cheng-Han; Wu, Chia-Hung; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Ye, Ming-Jyun; Chen, Chi-Wen; Wang, Tung-Jung; Timofeev, I. V.; Тимофеев, Иван Владимирович; Lee, Wei; Chen, Kuo-Ping
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VS2/7graphene heterostructures as promising anode material for Li-ion batteries / N. S. Mikhaleva [et al.] // J. Phys. Chem. C. - 2017. - Vol. 121, Is. 43. - P. 24179-24184, DOI 10.1021/acs.jpcc.7b07630. - Cited References: 64. - This work was supported by the government contract of the Ministry of Education and Science of the Russian Federation to Siberian Federal University (Grant No. 16.1455.2017/PCh). N. S. M. acknowledges the financial support of the RFBR, through the research project No. 16- 32-60003 mol-a-dk. M. A. V. acknowledges the financial support of the RFBR, through the research project No. 16-32- 00252 mol-a. Z. I. P. gratefully acknowledges the financial support of the Ministry of Education and Science of the Russian Federation in the framework of Increase Competitiveness Program of NUST MISiS (No. K2-2017-001) and the support of the RFBR through the research project No. 17-42- 190308 r-a. . - ISSN 1932-7447
Аннотация: Two-layer freestanding heterostructure consisting of VS2 monolayer and graphene was investigated by means of density functional theory computations as a promising anode material for lithium-ion batteries (LIB). We have investigated lithium atoms’ sorption and diffusion on the surface and in the interface layer of VS2/graphene heterostructure with both H and T configurations of VS2 monolayer. The theoretically predicted capacity of VS2/graphene heterostructures is high (569 mAh/g), and the diffusion barriers are considerably lower for the heterostructures than for bulk VS2, so that they are comparable to barriers in graphitic LIB anodes (∼0.2 eV). Our results suggest that VS2/graphene heterostructures can be used as a promising anode material for lithium-ion batteries with high power density and fast charge/discharge rates.

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Держатели документа:
Siberian Federal University, 79 Svobodny av., Krasnoyarsk, Russian Federation
National University of Science and Technology MISiS, 4 Leninskiy prospekt, Moscow, Russian Federation
Kirensky Institute of Physics, 50/38 Akademgorodok, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Mikhaleva, N. S.; Visotin, M. A.; Высотин Максим Александрович; Kuzubov, A. A.; Popov, Z. I.; Попов, Захар Иванович
}
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Vacancies influence on elastic properties of graphene and their migration rate under deformation / A. S. Fedorov, D. A. Fedorov, N. S. Eliseeva, A. A. Kuzubov // Joint International Conference "Advanced Carbon Nanostructures" (ACN 2011) : Abstracts. - 2011. - Ст. P1.09. - P78. - Библиогр.: 4

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Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Fedorov, D. A.; Федоров, Дмитрий Александрович; Eliseeva, N. S.; Kuzubov, A. A.; "Advanced Carbon Nanostructures", Joint International Conference(2011 ; July ; 4-8 ; St Petersburg)
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Chernozatonskii, L. A.
Two-dimensional semiconducting nanostructures based on single graphene sheets with lines of adsorbed hydrogen atoms / L. A. Chernozatonskii, P. B. Sorokin, J. W. Bruning // Appl. Phys. Lett. - 2007. - Vol. 91, Is. 18. - Ст. 183103, DOI 10.1063/1.2800889. - Cited References: 24 . - ISSN 0003-6951

РУБ Physics, Applied
Рубрики:
CARBON
GAS
Кл.слова (ненормированные):
Electronic properties -- Energy gap -- Graphite -- Hydrogen -- Semiconductor materials -- Superlattices -- Electronic spectra -- Graphene sheets -- Quasi-two-dimensional heterostructures -- Semiconducting nanostructures -- Nanostructured materials
Аннотация: It is shown that lines of adsorbed hydrogen pair atoms divide the graphene sheet into strips and form hydrogen-based superlattice structures (2HG-SL). We show that the formation of 2HG-SL changes the electronic properties of graphene from semimetal to semiconductor. The electronic spectra of "zigzag" (n,0) 2HG-SL is similar to that of (n,0) carbon nanotubes and have a similar oscillation of band gap with n, but with nonzero minimal values. The composite dual-periodic (n,0)+(m,0) 2HG-SLs of zigzag strips are analyzed, with the conclusion that they may be treated as quasi-two-dimensional heterostructures. (C) 2007 American Institute of Physics.

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Держатели документа:
Russian Acad Sci, Emanuel Inst Biochem Phys, Moscow 119334, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Humboldt Univ, Math Inst, D-12489 Berlin, Germany
ИФ СО РАН
Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosigina St., Moscow 119334, Russian Federation
Siberian Federal University, 79 Svobodny Ave., Krasnoyarsk 660041, Russian Federation
Kirensky Institute of Physics, Russian Academy of Sciences, Academgorodok, Krasnoyarsk 660036, Russian Federation
Institute of Mathematics, Humboldt University of Berlin, Berlin 12489, Germany

Доп.точки доступа:
Sorokin, P. B.; Bruning, J. W.
}
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Two-dimensional hexagonal CrN with promising magnetic and optical properties: A theoretical prediction / A. V. Kuklin [et al.] // Nanoscale. - 2017. - Vol. 9, Is. 2. - P. 621-630, DOI 10.1039/c6nr07790k. - Cited References: 76. - We acknowledge the Siberian Supercomputer Center (SSCC) of SB RAS, Novosibirsk; the Institute of Computational Modeling of SB RAS, Krasnoyarsk; the Joint Supercomputer Center of RAS, Moscow; and the ICC of Novosibirsk State University for providing the computing resources. This work was supported by the government contract of the Ministry of Education and Science of the Russian Federation to Siberian Federal University (Grant No. 16.1500.2014/K). P. V. A. acknowledges the Kyungpook National University Research Fund, 2014. N. S. M. acknowledges the Russian Foundation for Basic Research (RFBR 16-32-60003 mol_a_dk). . - ISSN 2040-3364
Кл.слова (ненормированные):
Boron nitride -- Calculations -- Energy gap -- Ferromagnetic materials -- Ferromagnetism -- Graphene -- Magnetism -- Metals -- Transition metals -- Transparency -- Dielectric functions -- Ferromagnetic orderings -- First-principles calculation -- Half-metallic properties -- Magnetic and optical properties -- Optical transparency -- Spintronics application -- Transition metal dichalcogenides -- Optical properties
Аннотация: Half-metallic ferromagnetic materials with planar forms are promising for spintronics applications. A wide range of 2D lattices like graphene, h-BN, transition metal dichalcogenides, etc. are non-magnetic or weakly magnetic. Using first principles calculations, the existence of graphene-like hexagonal chromium nitride (h-CrN) with an almost flat atomically thin structure is predicted. We find that freestanding h-CrN has a 100% spin-polarized half-metallic nature with possible ferromagnetic ordering and a high rate of optical transparency. As a possible method for stabilization and synthesis, deposition of h-CrN on 2D MoSe2 or on MoS2 is proposed. The formation of composites retains the half-metallic properties and leads to the reduction of spin-down band gaps to 1.43 and 1.71 eV for energetically favorable h-CrN/MoSe2 and h-CrN/MoS2 configurations, respectively. Calculation of the dielectric functions of h-CrN, h-CrN/MoSe2 and h-CrN/MoS2 exhibit the high transparency of all three low-dimensional nanomaterials. The honeycomb CrN may be considered as a promising fundamental 2D material for a variety of potential applications of critical importance. © The Royal Society of Chemistry 2017.

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Держатели документа:
Siberian Federal University, 79 Svobodny pr., Krasnoyarsk, Russian Federation
Department of Chemistry, Kyungpook National University, 80 Daehakro Bukgu, Daegu, South Korea
L.V. Kirensky Institute of Physics, 50/38 Akademgorodok, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kuklin, A. V.; Куклин, Артем Валентинович; Kuzubov, A. A.; Кузубов, Александр Александрович; Kovaleva, E. A.; Mikhaleva, N. S.; Tomilin, F. N.; Томилин, Феликс Николаевич; Lee, H.; Avramov, P. V.
}
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Triple VTe2/graphene/VTe2 heterostructures as perspective magnetic tunnel junctions / L. V. Begunovich, A. V. Kuklin, M. A. Visotin [et al.] // Appl. Surf. Sci. - 2020. - Vol. 510. - Ст. 145315, DOI 10.1016/j.apsusc.2020.145315. - Cited References: 67. - This work was supported by the government contract of the Ministry of Science and Higher Education of the Russian Federation to Siberian Federal University (Grant No. 16.1455.2017/PCh ) and Russian Foundation for Basic Research , Government of Krasnoyarsk Territory , Krasnoyarsk Regional Fund of Science to the research project: “Quantum chemical modeling of Bychkov-Rashba interfaces based on transition metal compounds and nanoscaled organic fragments”. P.V.A. and A.V.K. gratefully acknowledges the financial support of National Research Foundation of Republic of Korea for support under Grant No. NRF-2017R1A2B4004440 . A.V.K. also acknowledges the US Air Force Office of Scientific Research (contract FA-9550-18-1-0032) for support. The authors would like to thank Information Technology Center, Novosibirsk State University, Institute of Computational Modelling of SB RAS, Krasnoyarsk for providing the access to supercomputer facilities, and Irkutsk Supercomputer Center of SB RAS for providing the access to HPC-cluster “Akademik V.M. Matrosov” (Irkutsk Supercomputer Center of SB RAS, Irkutsk: ISDCT SB RAS; http://hpc.icc.ru, accessed 13.05.2019 ) . - ISSN 0169-4332
Кл.слова (ненормированные):
Magnetic tunnel junction -- Vanadium ditelluride monolayer -- Transition metal dichalcogenides -- Graphene -- Density functional theory
Аннотация: New perspective 1.4 nm thick spin-polarized triple heterostructures based on graphene sandwiched between two vanadium ditelluride monolayers (VTe2/graphene/VTe2) were studied using ab initio DFT technique. Both possible trigonal prismatic (H-VTe2) and octahedral (T-VTe2) VTe2 phases were considered to design and study graphene-based heterostructures. It was shown that the interaction with graphene changes the electronic structure of 2D T-VTe2 from metallic to half-metallic, making T phase perspective to be used for magnetic tunnel junctions. The electronic subsystem of graphene fragment is slightly hole doped. Calculated tunnel magnetoresistance ratio for the favorable heterostructure configuration estimated within the Julliere model is 220%, which opens a way to use VTe2/graphene/VTe2 as prospective magnetic tunnel junction in novel spintronic nanodevices based on tunnel magnetic resistance and spin transfer torque effects.

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Держатели документа:
Siberian Federal University, 79 Svobodny Av., Krasnoyarsk, 660041, Russian Federation
Department of Theoretical Chemistry and Biology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Royal Institute of Technology, Stockholm, SE-10691, Sweden
Kirensky Institute of Physics SB RAS, 50-38 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Department of Chemistry, Kyungpook National University, 80 Daehakro, Bukgu, Daegu, 41566, South Korea

Доп.точки доступа:
Begunovich, L. V.; Kuklin, A. V.; Visotin, M. A.; Высотин, Максим Александрович; Kuzubov, A. A.; Tomilin, F. N.; Томилин, Феликс Николаевич; Tarasov, A. S.; Тарасов, Антон Сергеевич; Mikhalev, Y. G.; Avramov, P. V.
}
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Theoretical Study of Vacancies and Adatoms in White Graphene / A. A. Kuzubov [et al.] // JETP Letters. - 2011. - Vol. 93, Is. 6. - P. 335-338, DOI 10.1134/S0021364011060051. - Cited References: 35 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
HEXAGONAL BORON-NITRIDE
   INITIO MOLECULAR-DYNAMICS
   BRILLOUIN LIGHT-SCATTERING
   BN NANOTUBES
   AB-INITIO
   ELASTIC PROPERTIES
   MONOLAYER
   GRAPHITE
   COMPRESSION
   TRANSITION
Аннотация: The stability of the B and N atomic vacancies and divacancies in an h-BN monolayer deformed by 2 and 4% along one of the axes has been investigated. It has been established that the N atomic vacancies are most stable; their concentration is insignificant and does not affect the properties of white graphene. The number of vacancies depends on the mobility of N and B atoms on the layer surface; therefore, the probability of recombination with the vacancies has been estimated. It has been revealed that the energy barrier for the migration of the B and N adatoms is about 0.23 and 1.23 eV, respectively. In view of such a low barrier for the B adatom, this type of adatoms will quite rapidly move over the surface and recombine with vacancies, in contrast to the N adatoms. Therefore, only nitrogen atom vacancies can exist in the h-BN monolayer grown by the methods, where the adatoms could possibly appear on the surface.

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Держатели документа:
[Kuzubov, A. A.
Serzhantova, M. V.
Kozhevnikova, T. A.] Siberian Fed Univ, Krasnoyarsk 660028, Russia
[Kuzubov, A. A.
Kozhevnikova, T. A.] Siberian State Technol Univ, Krasnoyarsk 660049, Russia
[Kuzubov, A. A.
Fedorov, A. S.
Tomilin, F. N.
Kozhevnikova, T. A.] Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
[Serzhantova, M. V.] Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
ИФ СО РАН
Siberian Federal University, Krasnoyarsk 660028, Russian Federation
Siberian State Technological University, Krasnoyarsk 660049, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian State Aerospace University, Krasnoyarsk 660014, Russian Federation

Доп.точки доступа:
Kuzubov, A. A.; Кузубов, Александр Александрович; Serzhantova, M. V.; Fedorov, A. S.; Федоров, Александр Семенович; Tomilin, F. N.; Томилин, Феликс Николаевич; Kozhevnikova, T. A.
}
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Theoretical study of the magnetic properties of ordered vacancies in 2D hexagonal structures: Graphene, 2D-SiC, and h-BN / N. S. Eliseeva [et al.] // JETP Letters. - 2012. - Vol. 95, Is. 11. - P. 555-559, DOI 10.1134/S0021364012110045. - Cited References: 29 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
INITIO MOLECULAR-DYNAMICS
   METALS
   TRANSITION
   DEFECTS
   STATE
Аннотация: The magnetic properties of vacancies in 2D hexagonal structures-graphene and 2D-SiC and h-BN monolayers-have been studied. It has been found that a local magnetic moment exists in all listed systems in the presence of vacancies. However, in 2D hexagonal silicon carbide, the local magnetic moment appears only in the presence of silicon vacancy. In addition, the effect of the distance between vacancies in a monolayer on transitions between the ferromagnetic and antiferromagnetic states has been revealed.

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Публикация на русском языке Теоретическое исследование магнитных свойств упорядоченных вакансий в 2D гексагональных структурах: графен, 2D-SiC, h-BN [Текст] / Н. С. Елисеева [и др.] // Письма в Журн. эксперим. и теор. физ. : Наука, 2012. - Т. 95 Вып. 11/12. - С. 633-637

Держатели документа:
[Eliseeva, N. S.
Kuzubov, A. A.
Ovchinnikov, S. G.
Serzhantova, M. V.] Siberian Fed Univ, Krasnoyarsk 660028, Russia
[Kuzubov, A. A.] Siberian State Technol Univ, Krasnoyarsk 660049, Russia
[Kuzubov, A. A.
Ovchinnikov, S. G.
Tomilin, F. N.
Fedorov, A. S.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Serzhantova, M. V.] Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
[Fedorov, A. S.] Moscow State Univ Econ Stat & Informat, Krasnoyarsk Branch, Krasnoyarsk 660012, Russia

Доп.точки доступа:
Eliseeva, N. S.; Kuzubov, A. A.; Кузубов, Александр Александрович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Serzhantova, M. V.; Tomilin, F. N.; Томилин, Феликс Николаевич; Fedorov, A. S.; Федоров, Александр Семенович
}
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Theoretical investigation of the interfaces and mechanisms of induced spin polarization of 1D narrow zigzag graphene- and h-BN nanoribbons on a SrO-terminated LSMO(001) surface / P. Avramov [et al.] // J. Phys. Chem. A. - 2017. - Vol. 121, Is. 3. - P. 680-689, DOI 10.1021/acs.jpca.6b09696. - Cited References:74. - We acknowledge the Siberian Supercomputer Center (SSCC) of SB RAS, Novosibirsk; the Joint Supercomputer Center of RAS, Moscow; and the ICC of Novosibirsk State University for providing the computing resources. P.B.S. acknowledges the financial support of the Ministry of Education and Science of the Russian Federation in the framework of Increase Competitiveness Program of NUST MISiS (No. K2-2015-033). The Russian Science Foundation (Grant No 14-13-00139) supported the work of the Russian team. The Japanese Science Foundation (JSPS KAKENHI, Grant No 16H3875) supported the work of the Japanese team. . - ISSN 1089-5639

РУБ Chemistry, Physical + Physics, Atomic, Molecular & Chemical
Рубрики:
HEXAGONAL BORON-NITRIDE
AUGMENTED-WAVE METHOD
GIANT MAGNETORESISTANCE
Аннотация: The structure of the interfaces and the mechanisms of induced spin polarization of 1D infinite and finite narrow graphene- and h-BN zigzag nanoribbons placed on a SrO-terminated La1-xSrxMnO3 (LSMO) (001) surface were studied using density functional theory (DFT) electronic structure calculations. It was found that the pi-conjugated nanofragments are bonded to the LSMO(001) surface by weak disperse interactions. The types of coordination of the fragments, the strength of bonding, and the rate of spin polarization depend upon the nature of the fragments. Infinite and finite graphene narrow zigzag nanoribbons are characterized by the lift of the spin degeneracy and strong spin polarization caused by interface-induced structural asymmetry and oxygen-mediated indirect exchange interactions with Mn ions of LSMO support. Spin polarization changes the semiconducting nature of infinite graphene nanoribbons to half-metallic state with visible spin-up density of states at the Fermi level. The h-BN nanoribbon binding energy is weaker than graphene nanoribbon ones with noticeably shorter interlayer distance. The asymmetry effect and indirect exchange interactions cause spin polarization of h-BN nanoribbon as well with formation of embedded states inside the band gap. The results show a possibility to use one-atom thick nanofragments to design LSMO-based heterostructures for spintronic nanodevices with h-BN as an inert spacer to develop different potential barriers.

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Держатели документа:
Kyungpook Natl Univ, Dept Chem, 80 Daehak Ro, Daegu 41566, South Korea.
Kyungpook Natl Univ, Green Nano Mat Res Ctr, 80 Daehak Ro, Daegu 41566, South Korea.
Siberian Fed Univ, 79 Svobodniy Pr, Krasnoyarsk 660041, Russia.
LV Kirensky Inst Phys SB RAS, 50-38 Akademgorodok, Krasnoyarsk 660036, Russia.
Natl Inst Quantum & Radiol Sci & Technol QST, Naka, Ibaraki 3191106, Japan.
Natl Univ Sci & Technol MISiS, Moscow 119049, Russia.

Доп.точки доступа:
Avramov, P. V.; Аврамов, Павел Вениаминович; Kuzubov, A. A.; Кузубов, Александр Александрович; Kuklin, A. V.; Куклин, Артем Валентинович; Lee, H.; Kovaleva, E. A.; Ковалева, Евгения Андреевна; Sakai, S.; Entani, S.; Naramoto, H.; Sorokin, P. B.; Ministry of Education and Science of the Russian Federation [K2-2015-033]; Russian Science Foundation [14-13-00139]; Japanese Science Foundation (JSPS KAKENHI) [16H3875]
}
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10.

    The Kohn-Luttinger superconductivity in idealized doped graphene / M. Y. Kagan [et al.] // The Eur. conf. "Physics of magnetism 2014" (PM’14) : Abstracts. - Poznań, 2014. - Ст. P-1-09. - This work was supported by the RFBR (projects 14-02-00058 and 14-02-31237) and the Grant of President of Russia (project MK-526.2013.2) . - ISBN 83-922407-9-0
   Перевод заглавия: Сверхпроводимость Кона-Латтинжера в идиализированном допированном графене
Кл.слова (ненормированные):
Graphene -- Superconductivity
Аннотация: The effect of the long-range Coulomb repulsion in an ensemble of Dirac fermions on the formation of the superconducting pairing in an idealized graphene monolayer is studied in the framework of the Kohn-Luttinger mechanism neglecting the van der Waals potential of a substrate and the role of the nonmagnetic impurities. The superconductive phase diagram of the system is constructed and it is shown that the Kohn-Luttinger renormalizations up to and including the second-order terms in the Coulomb interaction and the intersite Coulomb repulsion significantly affect the inter- play between the superconducting phases with f-, d+id-, and p+ip-wave symmetriesof the order parameter.

Материалы конференции

Доп.точки доступа:
Kagan, M. Y.; Val'kov, V. V.; Вальков, Валерий Владимирович; Mitskan, V. A.; Мицкан, Виталий Александрович; Korovushkin, M. M.; Коровушкин, Максим Михайлович; "Physics of magnetism", European conference(2014 ; Jun. 23-27 ; Poznań, Poland)
}
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11.

    The Kohn-Luttinger superconductivity in idealized doped graphene / M. Y. Kagan [et al.] // Solid State Commun. - 2014. - Vol. 188. - P. 61-66, DOI 10.1016/j.ssc.2014.03.001. - Cited References: 31. - This work was supported by the Program of the Division of Physical Sciences of the Russian Academy of Sciences (Project 11.3.1), and the Russian Foundation for Basic Research (Projects 14-02-00058 and 14-02-31237). One of the authors (M.M.K.) acknowledges the support of the Council of the President of the Russian Federation (Project MK-526.2013.2), and the Dynasty Foundation. . - ISSN 0038-1098. - ISSN 1879-2766
   Перевод заглавия: Сверхпроводимость Кона-Латтинжера в идиализированном допированном графене

РУБ Physics, Condensed Matter
Рубрики:
REPULSIVE INTERACTIONS
   HUBBARD-MODEL
   SUPERFLUIDITY
   INSTABILITY
   MECHANISM
   DENSITY
   SYSTEMS
Кл.слова (ненормированные):
Graphene -- Superconductivity
Аннотация: Idealized graphene monolayer is considered neglecting the van der Waals potential of the substrate and the role of the nonmagnetic impurities. The effect of the long-range Coulomb repulsion in an ensemble of Dirac fermions on the formation of the superconducting pairing in a monolayer is studied in the framework of the Kohn-Luttinger mechanism. The electronic structure of graphene is described in the strong coupling Wannier representation on the hexagonal lattice. We use the Shubin-Vonsowsky model which takes into account the intra- and intersite Coulomb repulsions of electrons. The Cooper instability is established by solving the Bethe-Salpeter integral equation, in which the role of the effective interaction is played by the renormalized scattering amplitude. The renormalized amplitude contains the Kohn-Luttinger polarization contributions up to and including the second-order terms in the Coulomb repulsion. We construct the superconductive phase diagram for the idealized graphene monolayer and show that the Kohn-Luttinger renormalizations and the intersite Coulomb repulsion significantly affect the interplay between the superconducting phases with f-, d+id-, and p+ip-wave symmetries of the order parameter. (C) 2014 Elsevier Ltd. All rights reserved.

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Держатели документа:
PL Kapitsa Phys Problems Inst, Moscow 119334, Russia
Natl Res Univ, Higher Sch Econ, Moscow Inst Elect & Math, Moscow 109028, Russia
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia

Доп.точки доступа:
Kagan, M. Y.; Val'kov, V. V.; Вальков, Валерий Владимирович; Mitskan, V. A.; Мицкан, Виталий Александрович; Korovushkin, M. M.; Коровушкин, Максим Михайлович; Program of the Division of Physical Sciences of the Russian Academy of Sciences [11.3.1]; Russian Foundation for Basic Research [14-02-00058, 14-02-31237]; Council of the President of the Russian Federation [MK-526.2013.2]; Dynasty Foundation
}
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12.

The Kohn-Luttinger effect and anomalous pairing in new superconducting systems and graphene / M. Y. Kagan [et al.] // J. Exp. Theor. Phys. - 2014. - Vol. 118, Is. 6. - P. 995-1011, DOI 10.1134/S1063776114060132. - Cited References: 114. - This study was supported by the Program of the Physics Department of the Russian Academy of Sciences (project no. P.3.1) and the Russian Foundation for Basic Research (project nos. 14-02-00058 and 14-02-31237). The work of two coauthors (M. M. K. and V.A.M) was supported financially by grant no. MK-526.2013.2 of the President of the Russian Federation and the Dynasty Foundation. . - ISSN 1063-7761. - ISSN 1090-6509

РУБ Physics, Multidisciplinary
Рубрики:
P-WAVE SUPERCONDUCTIVITY
   EXTENDED HUBBARD-MODEL
   NARROW ENERGY-BANDS
   2D KONDO-LATTICE
   FERMI GAS
   REPULSIVE INTERACTIONS
   ELECTRON CORRELATIONS
   COOPER INSTABILITY
   PHASE-DIAGRAM
   SPECTRUM
Аннотация: We present a review of theoretical investigations into the Kohn-Luttinger nonphonon superconductivity mechanism in various 3D and 2D repulsive electron systems described by the Fermi-gas, Hubbard, and Shubin-Vonsovsky models. Phase diagrams of the superconducting state are considered, including regions of anomalous s-, p-, and d-wave pairing. The possibility of a strong increase in the superconducting transition temperature T c even for a low electron density is demonstrated by analyzing the spin-polarized case or the two-band situation. The Kohn-Luttinger theory explains or predicts superconductivity in various materials such as heterostructures and semimetals, superlattices and dichalcogenides, high-T c superconductors and heavy-fermion systems, layered organic superconductors, and ultracold Fermi gases in magnetic traps. This theory also describes the anomalous electron transport and peculiar polaron effects in the normal state of these systems. The theory can be useful for explaining the origin of superconductivity and orbital currents (chiral anomaly) in systems with the Dirac spectrum of electrons, including superfluid 3He-A, doped graphene, and topological superconductors.

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Публикация на русском языке Эффект Кона-Латтинжера и аномальное спаривание в новых сверхпроводящих системах и графене [Текст] / М. Ю. Каган [и др.] // Журн. эксперим. и теор. физ. : Наука, 2014. - Т. 118 Вып. 6. - С. 1127-1146

Держатели документа:
Russian Acad Sci, Kapitza Inst Phys Problems, Moscow 119334, Russia
Natl Res Univ, Higher Sch Econ, Moscow State Inst Elect & Math, Moscow 109028, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia

Доп.точки доступа:
Kagan, M. Y.; Val'kov, V. V.; Вальков, Валерий Владимирович; Mitskan, V. A.; Мицкан, Виталий Александрович; Korovushkin, M. M.; Коровушкин, Максим Михайлович; Physics Department of the Russian Academy of Sciences [P.3.1]; Russian Foundation for Basic Research [14-02-00058, 14-02-31237]; Russian Federation [MK-526.2013.2]; Dynasty Foundation
}
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13.

The direct exchange mechanism of induced spin polarization of low-dimensional π-conjugated carbon- and h-BN fragments at LSMO(001) MnO-terminated interfaces / A. V. Kuklin [et al.] // J. Magn. Magn. Mater. - 2017. - Vol. 440: EURO-Asian Symposium on Trends in Magnetism (EASTMAG) (AUG 15-19, 2016, Siberian Fed Univ, Krasnoyarsk, RUSSIA). - P. 23-29, DOI 10.1016/j.jmmm.2016.12.096. - Cited References:70. - We acknowledge the Siberian Supercomputer Center (SSCC) of SB RAS, Novosibirsk; the Joint Supercomputer Center of RAS, Moscow and the ICC of Novosibirsk State University for providing the computing resources. Russian Science Foundation (Grant No 14-13-00139) supported the work of Russian team. . - ISSN 0304-8853. - ISSN 1873-4766

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
HEXAGONAL BORON-NITRIDE
   THIN-FILMS
   GIANT MAGNETORESISTANCE
   METALLIC
Кл.слова (ненормированные):
Graphene nanoribbons -- DFT -- LSMO thin films -- Induced spin polarization -- h-BN nanoribbons -- Half-metal
Аннотация: Induced spin polarization of π-conjugated carbon and h-BN low dimensional fragments at the interfaces formed by deposition of pentacene molecule and narrow zigzag graphene and h-BN nanoribbons on MnO2-terminated LSMO(001) thin film was studied using GGA PBE+U PAW D3-corrected approach. Induced spin polarization of π-conjugated low-dimensional fragments is caused by direct exchange with Mn ions of LSMO(001) MnO-derived surface. Due to direct exchange, the pentacene molecule changes its diamagnetic narrow-band gap semiconducting nature to the ferromagnetic semiconducting state with 0.15 eV energy shift between spin-up and spin-down valence bands and total magnetic moment of 0.11 μB. Direct exchange converts graphene nanoribbon to 100% spin-polarized half-metal with large amplitude of spin-up electronic density at the Fermi level. The direct exchange narrows the h-BN nanoribbon band gap from 4.04 to 1.72 eV in spin-up channel and converts the h-BN ribbon semiconducting diamagnetic nature to a semiconducting magnetic one. The electronic structure calculations demonstrate a possibility to control the spin properties of low-dimensional π-conjugated carbon and h-BN fragments by direct exchange with MnO-derived LSMO(001) surface for spin-related applications.

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Доп.точки доступа:
Kuklin, A. V.; Kuzubov, A. A.; Кузубов, Александр Александрович; Kovaleva, E. A.; Ковалева, Евгения Андреевна; Lee, Hyosun; Sorokin, Pavel B.; Sakai, Seiji; Entani, Shiro; Naramoto, Hiroshi; Avramov, P. V.; Аврамов, Павел Вениаминович; Russian Science Foundation [14-13-00139]; Euro-Asian Symposium "Trends in MAGnetism"(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); "Trends in MAGnetism", Euro-Asian Symposium(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); Институт физики им. Л.В. Киренского Сибирского отделения РАН
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14.

Synthesizing antiferromagnetic α-Fe2O3–rGO discs: Their magnetic and magneto-optical properties / A. V. Kurilova, A. E. Sokolov, A. L. Sukhachev [et al.] // Bull. Russ. Acad. Sci. Phys. - 2022. - Vol. 86, Is. 5. - P. 610-613, DOI 10.3103/S106287382205015X. - Cited References: 26 . - ISSN 1062-8738
Кл.слова (ненормированные):
Hematite -- Optical properties -- Antiferromagnetics -- Graphene layers -- Hematite nanoparticles -- Hybrid structure -- Magnetic and magneto-optical properties -- Reduced graphene oxides -- Uniform distribution
Аннотация: A comprehensive study is performed of the properties of hybrid structures of iron oxide and reduced graphene oxide α-Fe2O3/rGO synthesized via “wet mixing.” It is shown that hematite nanoparticles with a comparatively uniform distribution can be encapsulated in graphene layers, and the way of preparing precursors is of critical importance in shaping the magneto-optical properties of α-Fe2O3/rGO hybrid structures.

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Публикация на русском языке Синтез, магнитные и магнитооптические свойства антиферромагнитных нанодисков α-Fe2O3–rGO [Текст] / А. В. Курилова, А. Э. Соколов, А. Л. Сухачев [и др.] // Изв. РАН. Сер. физич. - 2022. - Т. 86 № 5. - С. 726-729

Держатели документа:
ITMO National Research University, St. Petersburg, 197101, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Kurilova, A. V.; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Sukhachev, A. L.; Сухачев, Александр Леонидович; Ivanova, O. S.; Иванова, Оксана Станиславовна; Bogdanov, K. V.; Baranov, M. A.; Dubavik, A. Y.
}
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15.

Superlattices consisting of "lines" of adsorbed hydrogen atom pairs on graphene / L. A. Chernozatonskii [et al.] // JETP Letters. - 2007. - Vol. 85, Is. 1. - P. 77-81, DOI 10.1134/S002136400701016X. - Cited References: 25 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
CARBON NANOTUBES
   ELECTRON-GAS
   GRAPHITE
   FILMS
   PSEUDOPOTENTIALS
Аннотация: The structures and electron properties of new superlattices formed on graphene by adsorbed hydrogen molecules are theoretically described. It has been shown that superlattices of the (n, 0) zigzag type with linearly arranged pairs of H atoms have band structures similar to the spectra of (n, 0) carbon nanotubes. At the same time. superlattices of the (n, n) type with a "staircase" of adsorbed pairs of H atoms are substantially metallic with a high density of electronic states at the Fermi level and this property distinguishes their spectra from the spectra of the corresponding (n, n) nanotubes. The features of the spectra have the Van Hove form, which is characteristic of each individual superlattice. The possibility of using such planar structures with nanometer thickness is discussed.

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Держатели документа:
Russian Acad Sci, Emanuel Inst Biochem Phys, Moscow 119334, Russia
Humboldt Univ, Inst Math, D-12489 Berlin, Germany
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660049, Russia
ИФ СО РАН
Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, ul. Kosygina 4, Moscow, 119334, Russian Federation
Institute of Mathematics, Humboldt University of Berlin, Berlin, 12489, Germany
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660049, Russian Federation

Доп.точки доступа:
Chernozatonskii, L. A.; Sorokin, P. B.; Belova, E. E.; Bruning, J.; Fedorov, A. S.; Федоров, Александр Семенович
}
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16.

Study of interaction between transition metal atoms and bigraphene monovacancy by means of quantum chemistry / A. A. Kuzubov [et al.] // Comput. Mater. Sci. - 2016. - Vol. 112, Part A. - P. 269-275, DOI 10.1016/j.commatsci.2015.11.002. - Cited References: 39. - The authors would like to thank Siberian Supercomputer Center (SSCC) of SB RAS, Novosibirsk; and L.V. Kirensky Institute of Physics of SB RAS, Krasnoyarsk, for providing the access to their supercomputers. This work was supported by the government contract of the Ministry of Education and Science of the Russian Federation to Siberian Federal University (Grant No. 16.1500.2014/K). . - ISSN 0927-0256

РУБ Materials Science, Multidisciplinary
Рубрики:
INITIO MOLECULAR-DYNAMICS
   MASSLESS DIRAC FERMIONS
   GRAPHENE
   VACANCIES
   POINTS
   GAS
Кл.слова (ненормированные):
Bigraphene -- Spintronics -- Transition metal -- Adsorption -- Migration
Аннотация: First-row transition metal atoms adsorption on bigraphene monovacancy was studied within the framework of DFT in periodic boundary conditions. Electronic and magnetic properties of composites were analyzed and their potential utilization in spintronics was discussed. Barriers of metal atoms migration from bigraphene surface to the interlayer space through the vacancy were estimated in order to consider both thermodynamic and kinetic aspects of composites experimental preparation. Formation of metal atoms inner-sorbed on bigraphene was found to demand harsh synthesis conditions; whereas outer-sorbed composites demonstrate significantly higher degree of spin polarization which makes them perspective for usage in spintronic devices. © 2015 Elsevier B.V.

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Держатели документа:
Siberian Federal University, 79 Svobodny pr., Krasnoyarsk, Russian Federation
L.V. Kirensky Institute of Physics, 50 Akademgorodok, Krasnoyarsk, Russian Federation
Kyungpook National University, 80 Daehakro, Bukgu, Daegu, South Korea

Доп.точки доступа:
Kuzubov, A. A.; Кузубов, Александр Александрович; Avramov, P. V.; Аврамов, Павел Вениаминович; Nikolaeva, K. M.; Mikhaleva, N. S.; Kovaleva, E. A.; Kuklin, A. V.; Куклин, Артем Валентинович; Fedorov, A. S.; Федоров, Александр Семенович
}
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17.

Structure Potential Energy Surfaces and Electronic States of Graphene- and Multigraphene-based 2D Extended Complex Nanocomposites / P. Avramov, S. Sakai, A. A. Kuzubov [et al.] // Joint International Conference "Advanced Carbon Nanostructures" (ACN 2011) : Abstracts. - 2011. - Ст. P1.02. - P71

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Материалы конференции

Доп.точки доступа:
Avramov, P. V.; Аврамов, Павел Вениаминович; Sakai, S.; Kuzubov, A.A.; Entani, S.; Matsumoto, Y.; Naramoto, H.; "Advanced Carbon Nanostructures", Joint International Conference(2011 ; July ; 4-8 ; St Petersburg)
}
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18.

Pichugin, K. N.
Spin-orbit effects in carbon nanotubes - Analytical results / K. N. Pichugin, M. Pudlak, R. G. Nazmitdinov // Eur. Phys. J. B. - 2014. - Vol. 87, Is. 6. - Ст. 124, DOI 10.1140/epjb/e2014-50076-6. - Cited References: 21 . - ISSN 1434-6028. - ISSN 1434-6036

РУБ Physics, Condensed Matter
Рубрики:
ELECTRONS
TRANSPORT
GRAPHENE
Аннотация: Energy spectra and transport properties of armchair nanotubes with curvature induced spin-orbit interaction are investigated thoroughly. The spin-orbit interaction consists of two terms: the first one preserves the spin symmetry in rotating frame, while the second one breaks it. It is found that the both terms are equally important: (i) at scattering on the potential step which mimics a long-range potential in the nanotubes; (ii) at transport via nanotube quantum dots. It is shown that an armchair nanotube with the first spin-orbit term works as an ideal spin-filter, while the second term produces a parasitic inductance.

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Держатели документа:
Kirensky Inst Phys, Krasnoyarsk 660036, Russia
Inst Expt Phys, Kosice 04001, Slovakia
Univ Illes Balears, Dept Fis, Palma de Mallorca 07122, Spain
Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia

Доп.точки доступа:
Pudlak, M.; Nazmitdinov, R. G.; Пичугин, Константин Николаевич
}
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19.

Spin states of 2D nanocomposites of Ni and V nanoclusters on hexagonal h-BN, BC3 and graphene / P. Avramov [et al.] // J. Mater. Sci. Technol. - 2015. - Vol. 31, Is. 10. - P. 979-985, DOI 10.1016/j.jmst.2015.08.008. - Cited References:21. - The work of Russian team was supported by Russian Scientific Foundation (Grant No. 14-13-00139). P.V.A. acknowledges JAEA ASRC and Molecular Spintronics Group for hospitality and fruitful collaboration. . - ISSN 1005-0302

РУБ Materials Science, Multidisciplinary + Metallurgy & Metallurgical
Рубрики:
BORON-NITRIDE
FILMS
Кл.слова (ненормированные):
Electronic structure -- Metal nanostructure -- Nanocomposites -- Graphene -- h-BN -- BC3 -- Spin states
Аннотация: Atomic and electronic structures of adsorbed nickel and vanadium atoms and nanoclusters (Ni-n and V-n, n = 1-10) on hexagonal h-BN and BC3 lattices were studied using DFT PBE/PBC/PW (Perdew-Burke-Ernzerhof potential of density functional theory/periodic boundary conditions/plane wave basis set) technique. For the sake of comparison the structure and properties of the same nanoclusters deposited on pristine graphene were calculated as well. It was found that for all types of supports an increase of n from 1 to 10 leaded to decrease of coordination types from eta(6) to eta(2) and eta(1). The h-BN- and BC3-based nanocomposites were characterized by high (up to 18 mu for Ni10/BC3) magnetic moments of the nanoclusters and featured by positive binding energies. The graphene-based nanocomposites revealed energetic stability and, in general, lower magnetic moments per unit cell. The direct potential energy barriers for migration of Ni eta(2)/eta(2) and eta(6)/eta(6) types of dimers on graphene were low (10.9-28.9 kJ/mol) with high reverse barriers for eta(6)/eta(6) dimers, which favored dynamically equilibrated Ni clusterization on graphene. Copyright (C) 2015, The editorial office of Journal of Materials Science & Technology. Published by Elsevier Limited. All rights reserved.

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Держатели документа:
Kyungpook Natl Univ, Taegu 702701, South Korea.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
SB RAS, LV Kirensky Phys Inst, Krasnoyarsk 660036, Academgorodok, Russia.
Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan.

Доп.точки доступа:
Avramov, P. V.; Аврамов, Павел Вениаминович; Kuzubov, A. A.; Кузубов, Александр Александрович; Sakai, S.; Entani, S.; Naramoto, H.; Eliseeva, N. S.; Елисеева, Наталья Сергеевна; Russian Scientific Foundation [14-13-00139]
}
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20.

Spin polarization of zgnr4/lsmo(001) heterostructures: mno-terminated spinterface / A. V. Kuklin [et al.] // VI Euro-Asian Symposium "Trends in MAGnetism" (EASTMAG-2016) : abstracts / ed.: O. A. Maksimova, R. D. Ivantsov. - Krasnoyarsk : KIP RAS SB, 2016. - Ст. P10.28. - P. 496. - References: 3 . - ISBN 978-5-904603-06-9
Кл.слова (ненормированные):
LSMO -- zigzag graphene nanoribbons -- DFT -- spin polarization -- ZGNR

Доп.точки доступа:
Kuklin, A. V.; Куклин, Артем Валентинович; Kuzubov, A. A.; Кузубов, Александр Александрович; Fedorov, A. S.; Федоров, Александр Семенович; Avramov, P. V.; Аврамов, Павел Вениаминович; Euro-Asian Symposium "Trends in MAGnetism"(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); "Trends in MAGnetism", Euro-Asian Symposium(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); Институт физики им. Л.В. Киренского Сибирского отделения РАН

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