Труды сотрудников института физики

/ A. A. Kuzubov [et al.] // Russ. J. Phys. Chem. A. - 2013. - Vol. 87, Is. 8. - P. 1332-1335, DOI 10.1134/S0036024413080141. - Cited References: 25 . - ISSN 0036-0244РУБ Chemistry, Physical

Аннотация: The geometrical characteristics of a 2D SiC monolayer on Mg(0001) and MgO(111) plates regarded as potential materials for growing two-dimensional silicon carbide were studied. The most favorable positions of the atoms of 2D SiC on the substrates were determined. In the 2D SiC/Mg(0001) system, unlike in 2D SiC/MgO(111), the deviation of the carbon atom from the silicon carbide monolayer was insignificant (0.08 ). Consequently, magnesium can be used as a substrate for growing two-dimensional silicon carbide. The use of MgO(111) is not recommended because of a significant distortion of the 2D SiC surface.

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Держатели документа:
Siberian Fed Univ, Krasnoyarsk, Russia
Russian Acad Sci, Siberian Branch, Kirenskii Inst Phys, Krasnoyarsk, Russia
Siberian State Univ Technol, Krasnoyarsk, Russia

Доп.точки доступа:
Kuzubov, A. A.; Кузубов, Александр Александрович; Eliseeva, N. S.; Krasnov, P. O.; Краснов, Павел Олегович; Tomilin, F. N.; Томилин, Феликс Николаевич; Fedorov, A. S.; Федоров, Александр Семенович; Tolstaya, A. V.

/ А. А. Кузубов [и др.] // Журн. физ. химии. - 2013. - Т. 87, № 8. - С. 1336-1340DOI 10.7868/S0044453713080189 . -
Аннотация: Исследованы геометрические особенности монослоя 2D SiC на пластинках Mg(0001) и MgO(111), рассматриваемых в качестве потенциальных материалов для выращивания двумерного карбида кремния. Определены наиболее выгодные положения атомов 2D SiC на подложках. Показано, что величина выхода атома углерода из плоскости монослоя карбида кремния незначительна в системе 2D SiC/Mg(0001) в отличие от 2D SiC/MgO(111) и составляет 0.08 A. Следовательно, существует возможность использования магния в качестве подложки для выращивания двумерного карбида кремния. Использовать MgO(111) нецелесообразно из-за сильного искажения поверхности 2D SiC.

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Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Кузубов, Александр Александрович; Kuzubov A. A.; Елисеева, Наталья Сергеевна; Краснов, Павел Олегович; Krasnov, P. O.; Томилин, Феликс Николаевич; Tomilin F. N.; Федоров, Александр Семенович; Fedorov A. S.; Толстая, А. В.

/ A. S. Fedorov [et al.] // Phys. Status Solidi B. - 2012. - Vol. 249, Is. 12. - P. 2549-2552, DOI 10.1002/pssb.201200105. - Cited References: 32. - The work was supported by The Ministry of education and science of Russia, project 14.B37.21.0163. The authors express their gratitude to the Joint Supercomputer Center, Russian Academy of Sciences, Moscow and the supercomputer center of the Moscow State University (SKIF-MGU) for the possibility of using their computer clusters to perform all calculations. . - ISSN 0370-1972РУБ Physics, Condensed Matter

Аннотация: Influence of ordered monovacancies on elastic properties of graphene is theoretically investigated by density functional theory (DFT) calculations. Inverse linear dependence of the graphene Young's modulus on the concentration of vacancies has been revealed and migration rate of the vacancies has been calculated as a function of applied strain. It is shown that the migration rate can be controlled by applying various strains or temperatures. The influence of ordered monovacancies on magnetic properties of graphene as well as graphene-like hexagonal carbon silicide (2D-SiC) and the boron nitride (h-BN) structures is investigated. It is established that the presence of vacancies in all systems yields the appearance of local magnetic moment. However, in 2D-SiC structure the magnetic moment occurs only in the case of a Si vacancy. Influence of the distance between vacancies on the ferromagnetic or anti-ferromagnetic ordering for all structures is established. (C) 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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Держатели документа:
[Fedorov, A. S.
Popov, Z. I.
Fedorov, D. A.] RAS, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia
[Eliseeva, N. S.
Serjantova, M. V.
Kuzubov, A. A.] Siberian Fed Univ, Krasnoyarsk 660028, Russia

Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Popov, Z. I.; Попов, Захар Иванович; Fedorov, D. A.; Федоров, Дмитрий Александрович; Eliseeva, N. S.; Serjantova, M. V.; Kuzubov, A. A.; Кузубов, Александр Александрович

/ A. A. Kuzubov [et al.] // Russ. J. Phys. Chem. A. - 2012. - Vol. 86, Is. 7. - P. 1091-1095, DOI 10.1134/S0036024412070138. - Cited References: 21 . - ISSN 0036-0244РУБ Chemistry, Physical

Аннотация: It is noted that the development of semiconductor SiC-electronics is prevented by a low quality of grown silicon carbide single crystals. It is found that structural defects of a substrate penetrating into an epitaxial layer upon subsequent homoepitaxial growth can considerably degrade a device's characteristics. We investigate the effect of the deformation of a hexagonal SiC monolayer on vacancy stability and material properties, and study the processes of silicon and carbon adatom migration over a surface of SiC.

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Держатели документа:
[Kuzubov, A. A.
Eliseeva, N. S.
Tomilin, F. N.
Tolstaya, A. V.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Kuzubov, A. A.
Krasnov, P. O.
Tomilin, F. N.
Fedorov, A. S.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Kuzubov, A. A.
Krasnov, P. O.] Siberian State Technol Univ, Krasnoyarsk 660049, Russia

Доп.точки доступа:
Kuzubov, A. A.; Кузубов, Александр Александрович; Eliseeva, N. S.; Krasnov, P. O.; Краснов, Павел Олегович; Tomilin, F. N.; Томилин, Феликс Николаевич; Fedorov, A. S.; Федоров, Александр Семенович; Tolstaya, A. V.

/ V. A. Loiko [et al.] // Mol. Cryst. Liquid Cryst. - 2012. - Vol. 561, Is. 1. - P. 194-202, DOI 10.1080/15421406.2012.687237. - Cited References: 24 . - ISSN 1542-1406РУБ Crystallography

Аннотация: A numerical method for modelling transmittance and angular distribution of light scattered by a Polymer Dispersed Liquid Crystal (PDLC) film, containing droplets with inhomogeneous boundary conditions, is proposed. It is based on the anomalous diffraction approximation and an interference approximation. The internal structures of nematic LC droplets are calculated on the basis of the free energy minimization problem solution using the relaxation method. The results for a monolayer of spherical LC droplets with modified boundary conditions caused by the local increase of the concentration of surface-active ions at the polymer-LC interface are discussed.

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Доп.точки доступа:
Loiko, V. A.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Konkolovich, A. V.; Misckevich, A. A.; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Maschke, U.; International Topical Meeting: Optics of Liquid Crystals (14th ; Sept 25 - Oct 1, 2011 ; Yerevan, Armenia)

/ A. V. Kuklin [et al.] // Phys. Solid State. - 2014. - Vol. 56, Is. 2. - P. 229-234, DOI 10.1134/S1063783414020164. - Cited References: 27. - This study was supported by the Russian Foundation for Basic Research (project no. 12-02-31417mol_a_2012). . - ISSN 1063-7834. - ISSN 1090-6460РУБ Physics, Condensed Matter

Аннотация: The VN(111) monolayer on the MgO(111) surface has been simulated and optimized in terms of the density functional theory (DFT) calculations. The most favorable arrangement of vanadium nitride on the surface of the magnesium oxide plate has been found. The band structure and densities of states for the VN(111) monolayer have been calculated. It has been concluded based on the densities of states for the VN monolayer on the MgO surface that this structure exhibits properties of a diluted magnetic semiconductor.

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Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian State Technol Univ, Krasnoyarsk 660049, Russia

Доп.точки доступа:
Kuklin, A. V.; Куклин, Артем Валентинович; Kuzubov, A. A.; Кузубов, Александр Александрович; Eliseeva, N. S.; Елисеева, Наталья Сергеевна; Tomilin, F. N.; Томилин, Феликс Николаевич; Fedorov, A. S.; Федоров, Александр Семенович; Krasnov, P. O.; Краснов, Павел Олегович; Russian Foundation for Basic Research [12-02-31417mol_a_2012]

/ M. Ohtomo [et al.] // Appl. Phys. Lett. - 2014. - Vol. 104, Is. 5. - Ст. 51604, DOI 10.1063/1.4863324. - Cited References: 20. - This study was supported by the Grant-in-Aid for Scientific Research (Grant Nos. 23860067 and 24760033) from the Japan Society for the Promotion of Science. . - ISSN 0003-6951. - ISSN 1077-3118РУБ Physics, Applied

Аннотация: Hexagonal boron nitride (h-BN) is a promising barrier material for graphene spintronics. In this Letter, spin-polarized metastable de-excitation spectroscopy (SPMDS) is employed to study the spin-dependent electronic structure of monolayer h-BN/Ni(111). The extreme surface sensitivity of SPMDS enables us to elucidate a partial filling of the in-gap states of h-BN without any superposition of Ni 3d signals. The in-gap states are shown to have a considerable spin polarization parallel to the majority spin of Ni. The positive spin polarization is attributed to the pi-d hybridization and the effective spin transfer to the nitrogen atoms at the h-BN/Ni(111) interface. (C) 2014 AIP Publishing LLC.

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Держатели документа:
Japan Atom Energy Agcy, Adv Sci Res Ctr, Naka, Ibaraki 3191195, Japan
Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
LV Kirensky Inst Phys SB RAS, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Ohtomo, M.; Yamauchi, Y.; Kuzubov, A. A.; Кузубов, Александр Александрович; Eliseeva, N. S.; Елисеева, Наталья Сергеевна; Avramov, P. V.; Аврамов, Павел Вениаминович; Entani, S.; Matsumoto, Y.; Naramoto, H.; Sakai, S.

/ M. Y. Kagan, V. A. Mitskan, M. M. Korovushkin // J. Exp. Theor. Phys. - 2014. - Vol. 119, Is. 6. - P. 1140-1149, DOI 10.1134/S1063776114120048. - Cited References:70. - This work was performed under the Program of the RAS Division ofPhysical Sciences (project no. II.3.1) and was supported financially bythe Russian Foundation for Basic Research (project nos. 14-02-00058 and14-02-31237) and by the President of the Russian Federation (grant no.MK-526.2013.2). One of the authors (M.M.K.) thanks the "Dynasty"foundation for financial support. . - ISSN 1063. - ISSN 1090-6509. - РУБ Physics, Multidisciplinary

Аннотация: The effect of Coulomb interaction in an ensemble of Dirac fermions on the formation of superconducting pairing in monolayer and bilayer doped graphene is studied using the Kohn-Luttinger mechanism disregarding the Van der Waals potential of the substrate and impurities. The electronic structure of graphene is described using the Shubin-Vonsovsky model taking into account the intratomic, interatomic, and interlayer (in the case of bilayer graphene) Coulomb interactions between electrons. The Cooper instability is determined by solving the Bethe-Saltpeter integral equation. The renormalized scattering amplitude is obtained with allowance for the Kohn-Luttinger polarization contributions up to the second order of perturbation theory in the Coulomb interaction. It plays the role of effective interaction in the Bethe-Salpeter integral equation. It is shown that the allowance for the Kohn-Luttinger renormalizations as well as intersite Coulomb interaction noticeably affects the competition between the superconducting phases with the f-wave and d + id-wave symmetries of the order parameter. It is demonstrated that the superconducting transition temperature for an idealized graphene bilayer with significant interlayer Coulomb interaction between electrons is noticeably higher than in the monolayer case.

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Держатели документа:
Russian Acad Sci, Kapitza Inst Phys Problems, Moscow 119334, Russia.
Natl Res Univ, Higher Sch Econ, 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:
Mitskan, V. A.; Мицкан, Виталий Александрович; Korovushkin, M. M.; Коровушкин, Максим Михайлович; RAS Division of Physical Sciences [II.3.1]; Russian Foundation for BasicResearch [14-02-00058, 14-02-31237]; Russian Federation [MK-526.2013.2]; "Dynasty" foundation

/ M. Y. Kagan, V. A. Mitskan, M. M. Korovushkin // Phys. Usp. - 2015. - Vol. 58, Is. 8. - P. 733-761, DOI 10.3367/UFNe.0185.201508a.0785. - Cited References: 369. - We are grateful to M A Baranov, A V Chubukov, D V Efremov, M V Feigel'man, V V Kabanov, K I Kugel', M S Marienko, N M Plakida, N V Prokorev, A Ya Tzalenchuk, and V V Val'kov for the fruitful discussions and constant attention to our work. The work was supported by the Russian Foundation for Basic Research (project nos. 14-02-00058 and 14-02-31237). M Yu K thanks the Program of Basic Research of the National Research University Higher School of Economics for support. The work of MM K was supported by grant of the President of the Russian Federation (SP-1361.2015.1) and the Dinasty Foundation . - ISSN 1063-7869РУБ Physics, Multidisciplinary

Аннотация: We discuss the mechanisms of unconventional superconductivity and superfluidity in 3D and 2D fermionic systems with purely repulsive interaction at low densities. We construct phase diagrams of these systems and find the areas of the superconducting state in free space, as well as on the lattice in the framework of the Fermi-gas model with hard-core repulsion, the Hubbard model, the Shubin-Vonsovsky model, and the t-J model. We demonstrate that the critical superconducting temperature can be greatly increased in the spin-polarized case or in a two-band situation already at low densities. The proposed theory is based on the Kohn-Luttinger mechanism or its generalizations and explains or predicts anomalous p-, d-, and f-wave pairing in various materials, such as high-temperature superconductors, the idealized monolayer and bilayer of doped graphene, heavy-fermion systems, layered organic superconductors, superfluid 3He, spin-polarized 3He mixtures in 4He, ultracold quantum gases in magnetic traps, and optical lattices.

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Держатели документа:
Kapitza Institute for Physical Problems, Russian Academy of Sciences, ul. Kosygina 2, Moscow, Russian Federation
National Research University, Higher School of Economics, ul. Myasnitskaya 20, Moscow, Russian Federation
Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50, str. 38, Krasnoyarsk, Russian Federation
Reshetnev Siberian State Aerospace University, prosp. Gazety Krasnoyarskii rabochii 31, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Mitskan, V. A.; Мицкан, Виталий Александрович; Korovushkin, M. M.; Коровушкин, Максим Михайлович

/ M. Yu. Kagan, V. A. Mitskan, M. M. Korovushkin // J. Low Temp. Phys. - 2015. - Vol. - P. 1-7, DOI 10.1007/s10909-015-1427-2 . - ISSN 0022. - ISSN 1573-7357
   Перевод заглавия: Влияние межузельного кулоновского взаимодействия на фазовую диаграмму сверхпроводящего состояния Кона-Латтинжера в идеализированном графене
Аннотация: The effect of the long-range Coulomb interaction on the formation of the Kohn–Luttinger superconductivity in monolayer doped graphene is studied disregarding the Van der Waals potential of the substrate and both magnetic and non-magnetic impurities. It is shown that the allowance for the Kohn–Luttinger renormalizations up to the second order in perturbation theory in the on-site Hubbard interaction inclusively, as well as in the intersite Coulomb interaction, significantly affects the interplay between the superconducting phases with the f-wave, p+ip-wave, and d+id-wave symmetries of the order parameter. It is demonstrated that taking Coulomb repulsion of electrons located at the next-nearest neighboring atoms in such a system into account changes qualitatively the phase diagram and enhances the critical temperature of the transition to the superconducting phase.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia.
MF Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia.
P. L. Kapitza Institute for Physical Problems, Russian Academy of Sciences, Moscow,

Доп.точки доступа:
Mitskan, V. A.; Мицкан, Виталий Александрович; Korovushkin, M. M.; Коровушкин, Максим Михайлович

/ V. A. Loiko [et al.] // J. Quant. Spectrosc. Radiat. Transf. - 2016. - Vol. 178: Electromagnetic and light scattering by nonspherical particles XV: Celebrating 150 years of Maxwell's electromagnetics. - P. 263-268, DOI 10.1016/j.jqsrt.2015.10.024. - Cited References:25 . - ISSN 0022-4073. - ISSN 1879-1352
   Перевод заглавия: Экспериментальные результаты и теоретическая модель, описывающая угловую зависимость рассеяния света монослоем капель нематикаРУБ Optics + Spectroscopy

Аннотация: Light scattering by a monolayer of bipolar nematic droplets encapsulated in polymer film is examined both experimentally and theoretically. A method for the simulation of the angular distribution of scattered light is based on the anomalous diffraction and interference approximations taking into account the director configuration within liquid crystal droplets and their bipolar axes orientation. The director configuration in nematic droplets is calculated using the relaxation method of the free energy minimization. The characteristics of the sample, including distribution of droplet sizes and shape anisometry, are measured in details. The experimental results and theoretical data agree closely with each other. (C) 2015 Elsevier Ltd. All rights reserved.

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Доп.точки доступа:
Loiko, V. A.; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Konkolovich, A. V.; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Miskevich, A. A.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Conference on Electromagnetic and Light Scattering(15 ; June 21-26, 2015 ; Leipzig, Germany)

/ A. A. Kuzubov [et al.] // JETP Letters. - 2011. - Vol. 93, Is. 6. - P. 335-338, DOI 10.1134/S0021364011060051. - Cited References: 35 . - ISSN 0021-3640РУБ Physics, Multidisciplinary

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.

/ M. V. Serzhantova [et al.] // J. Exp. Theor. Phys. - 2011. - Vol. 112, Is. 4. - P. 664-667, DOI 10.1134/S1063776111030150. - Cited References: 19 . - ISSN 1063-7761РУБ Physics, Multidisciplinary

Аннотация: The influence of boron and nitrogen vacancies and divacancies on the electronic structure of a hexagonal boron nitride h-BN monolayer is studied. In the presence of vacancies in the structure, the introduced states appear in the forbidden band. The position of an introduced state with respect to the upper occupied level and the lower vacant level depends on deformation. Calculations show that, depending on the defect type and the magnitude of the applied deformation, the introduced state can be both localized and not localized on atoms surrounding the defect. When the state is localized in the system, the inhomogeneous distribution of the spin density is observed, resulting in the appearance of the magnetic moment in the system.

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Держатели документа:
[Serzhantova, M. V.
Kuzubov, A. A.] Siberian Fed Univ, Krasnoyarsk 660023, Russia
[Serzhantova, M. V.] Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
[Kuzubov, A. A.
Krasnov, P. O.] Siberian State Technol Univ, Krasnoyarsk 660049, Russia
[Kuzubov, A. A.
Fedorov, A. S.
Krasnov, P. O.
Tomilin, F. N.] Russian Acad Sci, Siberian Div, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Siberian Federal University, Krasnoyarsk 660023, Russian Federation
Siberian State Aerospace University, Krasnoyarsk 660014, Russian Federation
Siberian State Technological University, Krasnoyarsk 660049, Russian Federation
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Serzhantova, M. V.; Kuzubov, A. A.; Кузубов, Александр Александрович; Fedorov, A. S.; Федоров, Александр Семенович; Krasnov, P. O.; Краснов, Павел Олегович; Tomilin, F. N.; Томилин, Феликс Николаевич

/ A. V. Barannik, A. V. Shabanov, V. Y. Zyryanov // Tech. Phys. Lett. - 2002. - Vol. 28, Is. 8. - P. 675-677, DOI 10.1134/1.1505547. - Cited References: 14 . - ISSN 1063-7850РУБ Physics, Applied

Аннотация: The dynamics of the optical response of a polymer-dispersed nematic liquid crystal under the action of electric field pulses was experimentally studied for film samples differing in the size of nematic droplets. The optical signal relaxation curve exhibits an oscillating character, with the number of oscillations determined by the transverse size of the nematic droplets. The interference character of the signal oscillations is confirmed by an analysis of the oscillating response within the framework of the anomalous diffraction approximation and by a comparison with the dependence of the transmitted light intensity on the applied voltage measured in a static regime. (C) 2002 MAIK "Nauka / Interperiodica".

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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Shabanov, A. V.; Шабанов, Александр Васильевич; Zyryanov, V. Y.; Зырянов, Виктор Яковлевич

/ Y. V. Sukhinin // J. Exp. Theor. Phys. - 1998. - Vol. 87, Is. 1. - P. 115-122, DOI 10.1134/1.558645. - Cited References: 38 . - ISSN 1063-7761РУБ Physics, Multidisciplinary

Аннотация: Equilibrium states of the system of self-assembled monolayers (SAMs) of n-alkanethiol molecules HS(CH2)(n-1)(X) with polar group X chemiabsorbed on the Au(111) crystal surface are considered. The couplings between the atoms (C, H) of the n-alkanethiols are approximated by the Lennard-Jones potential. The couplings between the n-alkanethiols and the crystal surface are approximated by the 12-3 potential. The interactions of polar groups and the self-images with the metal substrate are taken into consideration. The phase-transition temperatures, the structural order and equilibrium tilt, and the twist and azimuthal angles of the macromolecules, which depend on the dipole moments, are found. (C) 1998 American Institute of Physics.

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Держатели документа:
LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН

/ A. V. Konkolovich [et al.] // JETP Letters. - 2000. - Vol. 71, Is. 12. - P. 486-488. - Cited References: 8 . - ISSN 0021-3640РУБ Physics, Multidisciplinary

Аннотация: A theoretical study of light transmission through a polymer with a monolayer ensemble of bipolar nematic droplets under applied electric film is performed. The possibility of interference quenching of monochromatic coherent light directly transmitted through the film is predicted theoretically and realized in the experiment. (C) 2000 MAIK "Nauka/Interperiodica".

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Держатели документа:
Belarussian Acad Sci, BI Stepanov Phys Inst, Minsk 220072, Byelarus
Russian Acad Sci, Inst Phys, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН
Stepanov Institute of Physics, Belarussian Academy of Sciences, Minsk, 220072, Belarus
Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Konkolovich, A. V.; Presnyakov, V. V.; Zyryanov, V. Y.; Зырянов, Виктор Яковлевич; Loiko, V. A.; Shabanov, V. F.; Шабанов, Василий Филиппович

/ V. A. Loiko [et al.] // Журнал прикладной спектроскопии. - 2016. - Т. 83: Спецвыпуск, Вып. 6-16, Ч. III-IV. - P. 525-526 . - ISSN 0514-7506
   Перевод заглавия: Полуаналитический метод описания малоуглового рассеяния света монослоем полидисперсных нематических капель
Аннотация: The approach to describe light scattering by a monolayer of nematic droplets which takes into account shape, anisotropy, director configuration, size distribution, orientation of droplets is worked out and compared with the experimental data.

РИНЦ


Доп.точки доступа:
Konkolovich, A. V.; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Miskevich, A. A.; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Loiko, V. A.; International Conference on Coherent and Nonlinear Optics(2016 ; Sept. ; 26-30 ; Minsk, Belarus); International Conference on Lasers, Applications, and Technologies(2016 ; Sept. ; 26-30 ; Minsk, Belarus)

/ L. V. Tikhonova, M. M. Korshunov // J. Supercond. Novel Magn. - 2020. - Vol. 33, Is. 1. - P. 171-176, DOI 10.1007/s10948-019-05253-y. - Cited References: 70. - This work was supported in part by “BASIS” Foundation for Development of Theoretical Physics and Mathematics. . - ISSN 1557-1939
   Перевод заглавия: Влияние дополнительного слоя селена на электронную структуру сверхпроводника на основе железа FeSe/SrTiO3
Аннотация: We use density functional theory to study the structure and the band structure of the monolayer FeSe deposited on the SrTiO3 substrate with the additional layer of Se between them. The top of the SrTiO3 is formed by the double TiOx layer with and without oxygen vacancies. Several structures with different arrangements of the additional Se atoms above the double TiOx layer are considered. Equilibrium structures were found, and the band structures for them were obtained. Near the Γ = (0,0,0) point of the Brillouin zone, the hole Fermi surface pockets persist and, additionally, an electron pocket appears. Thus, neither the presence of the additional Se layer nor the oxygen vacancies in the double TiOx layer lead to the sinking of hole bands below the Fermi level near the Γ point. The necessity to include the strong electronic correlations into account is discussed.

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Держатели документа:
Siberian Federal University, Svobodny Prospect 79, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Korshunov, M. M.; Коршунов, Максим Михайлович

/ 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
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.

/ D. V. Averyanov, I. S. Sokolov, M. S. Platunov [et al.] // Nano Res. - 2020. - Vol. 13, Is. 12. - P. 3396-3402, DOI 10.1007/s12274-020-3027-y. - Cited References: 58. - This work was supported by National Research Center (NRC) "Kurchatov Institute" (No. 1359, characterization) and the Russian Science Foundation (No. 19-19-00009 (synthesis) and No. 20-79-10028 (magnetization measurements)). D. V. A. also acknowledges support from the President's scholarship (SP 1398.2019.5). The measurements have been carried out using equipment of the resource centers of electrophysical and electron microscopy techniques in NRC "Kurchatov Institute" . - ISSN 1998-0124. - ISSN 1998-0000РУБ Chemistry, Physical + Nanoscience & Nanotechnology + Materials Science,

Аннотация: Two-dimension (2D) magnets have recently developed into a class of stoichiometric materials with prospective applications in ultra-compact spintronics and quantum computing. Their functionality is particularly rich when different magnetic orders are competing in the same material. Metalloxenes REX2 (RE = Eu, Gd; X = Si, Ge), silicene or germanene — heavy counterparts of graphene — coupled with a layer of rare-earth metals, evolve from three-dimension (3D) antiferromagnets in multilayer structures to 2D ferromagnets in a few monolayers. This evolution, however, does not lead to fully saturated 2D ferromagnetism, pointing at a possibility of coexisting/competing magnetic states. Here, REX2 magnetism is explored with element-selective X-ray magnetic circular dichroism (XMCD). The measurements are carried out for GdSi2, EuSi2, GdGe2, and EuGe2 of different thicknesses down to 1 monolayer employing K absorption edges of Si and Ge as well as M and L edges of the rare-earths. They access the magnetic state in REX2 and determine the seat of magnetism, orbital, and spin contributions to the magnetic moment. High-field measurements probe remnants of the bulk antiferromagnetism in 2D REX2. The results provide a new platform for studies of complex magnetic structures in 2D materials.

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Держатели документа:
Natl Res Ctr Kurchatov Inst, Kurchatov Sq 1, Moscow 123182, Russia.
ESRF European Synchrotron, CS 40220, F-38043 Grenoble 9, France.
ALBA Synchrotron Light Source, Barcelona 08290, Spain.
LOrme Merisiers, Synchrotron SOLEIL, F-91192 Gyf Sur Yvette, France.
RAS, Kirensky Inst Phys, Fed Res Ctr KSC SB, Akad Gorodok 50,Bld 38, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Averyanov, D. V.; Sokolov, Ivan S.; Platunov, M. S.; Платунов, Михаил Сергеевич; Wilhelm, Fabrice; Rogalev, Andrei; Gargiani, Pierluigi; Valvidares, Manuel; Jaouen, Nicolas; Parfenov, Oleg E.; Taldenkov, Alexander N.; Karateev, Igor A.; Tokmachev, Andrey M.; Storchak, V. G.