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Conductivity, weak ferromagnetism, and charge instability in an alpha-MnS single crystal / S. S. Aplesnin [et al.] // Phys. Rev. B. - 2005. - Vol. 71, Is. 12. - Ст. 125204 ; Phys. Rev. B Condens. Matter Mater. Phys. - 2005. - Vol. 71, Is. 12. - Ст. 125204, DOI 10.1103/PhysRevB.71.125204. - Cited References: 11 . - ISSN 1098-0121. - Вариант Sopus

РУБ Physics, Condensed Matter
Рубрики:
MANGANITES
Кл.слова (ненормированные):
ferromagnetic material -- manganese derivative -- absorption spectroscopy -- article -- calculation -- conductance -- crystal -- electron spin resonance -- hybridization -- magnetic field -- magnetism -- measurement -- molecular interaction -- temperature dependence -- temperature measurement -- ferromagnetic material -- manganese derivative -- absorption spectroscopy -- article -- calculation -- conductance -- crystal -- electron spin resonance -- hybridization -- magnetic field -- magnetism -- measurement -- molecular interaction -- temperature dependence -- temperature measurement
Аннотация: The temperature dependence of resistivity, magnetization, and electron-spin resonance of the α-MnS single crystal were measured in temperature range of 5 K < T< 550 K. Magnetization hysteresis in an applied magnetic field up to 0.7 T at T=5, 77, and 300 K, irreversible temperature behavior of magnetization, and resistivity were found. The obtained data were explained in terms of a degenerate tight binding model using random phase. approximation. The contribution of holes in t(2g) and e(g) bands of manganese ions to the conductivity, optical absorbtion spectra, and charge instability in α-MnS were studied. Charge susceptibility maxima resulted from the competition of the on-site Coulomb interaction between the holes in different orbitals and small hybridization of subbands were calculated at T = 160, 250, and 475 K.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Ryabinkina, L. I.; Рябинкина, Людмила Ивановна; Abramova, G. M.; Абрамова, Галина Михайловна; Romanova, O. B.; Романова, Оксана Борисовна; Vorotynov, A. M.; Воротынов, Александр Михайлович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Kiselev, N. I.; Balaev, A. D.; Балаев, Александр Дмитриевич

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Gavrichkov, V. A.
Doping dependent electronic structure of cuprates and the effective low energy Hamiltonian for the magnetic pairing / V. A. Gavrichkov, M. M. Korshunov, S. G. Ovchinnikov // Int. J. Mod. Phys. B. - 2005. - Vol. 19, Is. 1-3. - P. 247-249, DOI 10.1142/S0217979205028335. - Cited References: 14 . - ISSN 0217-9792

РУБ Physics, Applied + Physics, Condensed Matter + Physics, Mathematical
Рубрики:
COPPER OXIDES
SYMMETRY
MODEL
Кл.слова (ненормированные):
electronic structure -- strong electron correlations -- magnetic mechanism of pairing -- Electronic structure -- Magnetic mechanism of pairing -- Strong electron correlations -- copper derivative -- calculation -- chemical reaction -- chemical structure -- conference paper -- correlation analysis -- electron -- electronics -- energy -- hybridization -- intermethod comparison -- magnetism -- mathematical analysis -- mathematical model
Аннотация: The properties of the normal and superconducting phases of p- and n-type cuprates are investigated in the appropriate low-energy models in the approximation beyond Hubbard I considering spin fluctuations. Calculated chemical potential dependence on doping, Fermi surface and T,(x) phase diagram for n-type cuprates are in remarkably good agreement with the experimental ones. Comparison of the singlet-triplet t-J model with simple t-J model shows that the spin-exciton mechanism originated from singlet-triplet hybridization leads to small contribution to the T-c(x) - optimal doping value becomes slightly lower and the maximum value of T-c become slightly higher.

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
L. V. Kirensky Inst. Phys. S., Russian Academy of Science, Akademgorodok, 660036, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Korshunov, M. M.; Коршунов, Максим Михайлович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Гавричков, Владимир Александрович; International Conference on New Theories, Discoveries and Applications of Superconductors and Related Materials(5 ; 2004 ; June ; 11-16 ; Chongqing, China)
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The mechanism of suppression of strong electron correlations in FeBO3 at high pressures / A. G. Gavriliuk [et al.] // J. Exp. Theor. Phys. - 2004. - Vol. 99, Is. 3. - P. 566-573, DOI 10.1134/1.1809686. - Cited References: 18 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
MAGNETIC COLLAPSE
   TRANSITION
   SPECTRA
   ABSORPTION
   STATE
Кл.слова (ненормированные):
Crystal structure -- High pressure effects -- Light absorption -- Parameter estimation -- Phase transitions -- Spectrum analysis -- Crystal field -- Electron correlations -- Generalized tight binding method -- Hybridization -- Iron compounds
Аннотация: The optical absorption spectra of iron borate (FeBO3) are measured at high pressures up to P = 82 GPa. A mechanism of suppression of strong electron correlations is proposed within the framework of the generalized tight binding method, which leads to the experimentally observed magnetic, electronic, and structural phase transitions. Taking into account peculiarities of the crystal structure of FeBO3 and the strong s-p hybridization of boron and oxygen, it is established that, as the distance between ions varies with increasing pressure, the crystal field parameter begins to play a decisive role in the electron transitions, while the influence of the d band broadening is negligibly small. Parameters of the theory are calculated as functions of the pressure. (C) 2004 MAIK "Nauka / Interperiodica".

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Держатели документа:
Russian Acad Sci, Shubnikov Inst Crystall, Moscow, Russia
Russian Acad Sci, Inst High Pressure Phys, Troitsk 142092, Russia
Russian Acad Sci, Kirensky Inst Phys, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН
Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 119333, Russian Federation
Institute of High-Pressure Physics, Russian Academy of Sciences, Troitsk, Moscow region, 142092, Russian Federation
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Gavriliuk, A. G.; Trojan, I. A.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Lyubutin, I. S.; Sarkisyan, V. A.
}
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Erukhinov, M. S.
The S-D(f)-hybridization effect on light-absorption in impurity magnetic semiconductors / M. S. Erukhinov // Fiz. Tverd. Tela. - 1980. - Vol. 22, Is. 6. - P. 1660-1665. - Cited References: 12 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

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    Bio-hybridization of nanobactericides with cellulose films for effective treatment against members of ESKAPE multi-drug-resistant pathogens / S. Baker [et al.] // Appl. Nanosci. - 2018. - Vol. 8, Is. 5. - P. 1101-1110, DOI 10.1007/s13204-018-0717-9. - Cited References: 51. - Authors are thankful for Ministry of Education and Science of the Russian Federation for providing funding under the scheme of 5-100: Russian Academic Excellence Project. Authors are grateful for facilities provided by Siberian Federal University to carry out the present study. . - ISSN 2190-5509. - ISSN 2190-5517
   Перевод заглавия: Биогибридизация нано-бактерицидов с целлюлозными пленками для эффективного воздействия на представителей группы патогенов ESKAPE, резистентных к различным препаратам

РУБ Nanoscience & Nanotechnology
Рубрики:
SILVER NANOPARTICLES
BACTERIAL CELLULOSE
ANTIBIOTIC-RESISTANCE
Кл.слова (ненормированные):
ESKAPE -- Bio-hybridization -- Silver nanobactericides -- Phytogenic -- Bactericidal activity
Аннотация: The rapid expansion of drug-resistant pathogens has created huge global impact and development of novel antimicrobial leads is one of the top priority studies in the current scenario. The present study aims to develop bio-hybridized nanocellulose films which comprise of phytogenic silver nanobactericides. The nanobactericides were synthesized by treating 1 mM silver nitrate with aqueous extract of Chamerion angustifolium which reduced the metal salt to produce polydispersed nanobactericides which were tested against the members of ESKAPE drug-resistant communities. The synthesized silver nanobactericides were subjected to characterization with UV–visible spectra which displayed maximum absorbance at 408 nm. The bio-molecular interaction of phyto-constituents to mediate synthesis and stabilization of nanobactericides was studied with Fourier-transform infrared spectroscopy (FTIR) which depicted functional groups associated with nanobactericides. The crystalline nature was studied with X-ray diffraction (XRD) which showed Bragg’s intensities at 2θ angle which denoted (111), (200), (220), and (311) planes. The morphological characteristics of silver nanobactericides were defined with transmission electron Microscopy (TEM) image which displayed polydispersity of silver nanobactericides with size ranging from 2 to 40 nm. The synthesized nanobactericides showed a significant activity against MRSA strain with 21 mm zone of inhibition. The minimal inhibitory concentration of silver nanobactericides to inhibit the growth of test pathogens was also determined which ranged between 0.625 and 1.25 μg/ml. The silver nanobactericides were bio-hybridized onto nanocellulose films produced by Komagataeibacter xylinus B-12068 culture strain. The films were dried to determine the mechanical properties which showed increased in Young’s modulus and tensile strength in comparison with control bacterial cellulose films. Overall, the results obtained in the present investigation are promising enough to report bactericidal activity of bio-hybridized nanobactericidal films against ESKAPE. These communities are reported to cause severe threats to all forms of lives irrespective to their habitats which can lead to huge economical crisis.

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Держатели документа:
Siberian Fed Univ, Lab Biotechnol New Mat, Svobodnyy Pr 79, Krasnoyarsk 660041, Russia.
SB RAS, Krasnoyarsk Sci Ctr, Fed Res Ctr, Inst Biophys, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia.
Siberian Fed Univ, Sch Fundamental Biol & Biotechnol, Krasnoyarsk, Russia.
Krasnoyasrk State Med Univ, Dept Microbiol, Krasnoyarsk Partizana Zheleznyaka St 1, Krasnoyarsk 660022, Russia.
SB RAS, Fed Res Ctr KSC, Kirensky Inst Phys, Akademgorodok 50,Bld 38, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Sch Petr & Nat Gas Engn, Krasnoyarsk, Russia.

Доп.точки доступа:
Baker, Syed; Volova, Tatiana; Prudnikova, Svetlana V.; Shumilova, Anna A.; Perianova, Olga, V; Zharkov, S. M.; Жарков, Сергей Михайлович; Kuzmin, A. R.; Kondratenka, Olga; Kiryukhin, Bogdan; Shidlovskiy, Ivan P.; Potkina, Zoya K.; Khohlova, Olga Y.; Lobova, Tatiana I.; Ministry of Education and Science of the Russian Federation under the scheme of 5-100: Russian Academic Excellence Project
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    Engineering mode hybridization in regular arrays of plasmonic nanoparticles embedded in 1D photonic crystal / V. S. Gerasimov [et al.] // J. Quant. Spectrosc. Radiat. Transf. - 2019. - Vol. 224. - P. 303-308, DOI 10.1016/j.jqsrt.2018.11.028. - Cited References: 49. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (Grant No.18-42-240013); by the RF Ministry of Science and Higher Education, the State contract with Siberian Federal University for scientific research in 2017–2019 (Grant No.3.8896.2017); by the Russian Science Foundation (Project No. 18-13-00363 ) (numerical calculations of Rayleigh anomalies in planar structures and corresponding research). . - ISSN 0022-4073
   Перевод заглавия: Управляемая гибридизация мод двумерной решетки внедренной в одномерный фотонный кристалл
Кл.слова (ненормированные):
Surface lattice resonance -- Photonic crystal -- Optical cavity
Аннотация: We analytically and numerically study coupling mechanisms between 1D photonic crystal (PhC) and 2D array of plasmonic nanoparticles (NPs) embedded in its defect layer. We introduce general formalism to explain and predict the emergence of PhC-mediated Wood–Rayleigh anomalies, which spectral positions agree well with the results of exact simulations with Finite-Difference Time-Domain (FDTD) method. Electromagnetic coupling between localized surface plasmon resonance (LSPR) and PhC-mediated Wood–Rayleigh anomalies makes it possible to efficiently tailor PhC modes. The understanding of coupling mechanisms in such hybrid system paves a way for optimal design of sensors, light absorbers, modulators and other types of modern photonic devices with controllable optical properties.

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Держатели документа:
Institute of Computational Modeling SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Federal Siberian Research Clinical Centre under FMBA of Russia, Krasnoyarsk, 660037, Russian Federation
Polytechnic Institute, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
The Institute of Optics, University of Rochester, Rochester, NY 14627, United States
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian State University of Science and Technology, Krasnoyarsk, 660014, Russian Federation

Доп.точки доступа:
Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Ershov, A. E.; Ершов, Александр Евгеньевич; Bikbaev, R. G.; Rasskazov, I. L.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Polyutov, S. P.; Karpov, S. V.; Карпов, Сергей Васильевич
}
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    Бикбаев, Рашид Гельмединович.
    Исследование эффектов гибридизации таммовских плазмон-поляритонов с модами двумерных наноструктурированных сред / Р. Г. Бикбаев, С. Я. Ветров, И. В. Тимофеев // IX Международная конференция по фотонике и информационной оптике : сборник научных трудов. - 2020. - С. 433-434. - Библиогр.: 4 . - ISBN 978-5-7262-2648-4
   Перевод заглавия: Investigation of the hybridization effects of Tamm plasmon-polaritons and modes of two-dimensional nanostructured media
Аннотация: В работе исследованы оптические и спектральные свойства гибридных мод, образованных в результате связи таммовского плазмон-поляритона с модами двумерных диэлектрических наноструктурированных сред.

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

Доп.точки доступа:
Ветров, Степан Яковлевич; Vetrov, S. Ya.; Тимофеев, Иван Владимирович; Timofeev, I. V.; Bikbaev, R. G.; Международная конференция по фотонике и информационной оптике(9 ; 2020 ; янв. ; 29-31 ; Москва); Российская академия наук; Национальный исследовательский ядерный университет "МИФИ"; Государственная корпорация по атомной энергии "РОСАТОМ"
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    Исследование гибридизации таммовских плазмон-поляритонов с модами двумерных наноструктурированных сред / Р. Г. Бикбаев, Н. В. Рудакова, С. Я. Ветров, И. В. Тимофеев // X Международная конференция по фотонике и информационной оптике : сборник научных трудов. - 2021. - С. 247-248. - Библиогр.: 6 . - ISBN 978-5-7262-2733-7
   Перевод заглавия: Investigation of the hybridization of tamm plasmon-polaritons and modes of two-dimensional nanostructured media

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

Доп.точки доступа:
Бикбаев, Рашид Гельмединович; Bikbaev, R. G.; Рудакова, Наталья Викторовна; Ветров, Степан Яковлевич; Vetrov, S. Ya.; Тимофеев, Иван Владимирович; Timofeev, I. V.; Международная конференция по фотонике и информационной оптике(10 ; 2021 ; 27-29 янв. ; Москва); Российская академия наук; Национальный исследовательский ядерный университет "МИФИ"; Государственная корпорация по атомной энергии "РОСАТОМ"
}
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    sp2 to sp3 hybridization transformation in ionic crystals under unprecedentedly low pressure / X. Jiang, M. S. Molokeev, N. Wang [et al.] // Angew. Chem. Int. Ed. - 2022. - Vol. 61, Is. 44. - Ст. e202208247, DOI 10.1002/anie.202208247. - Cited References: 48. - The authors acknowledge Zhuohong Yin for useful discussions and the experimental time provided by the 4W2 beam line of the Beijing Synchrotron Radiation Facility (BSRF). This work was supported by the National Scientific Foundations of China (Grants 51702330, 11974360, 51872297, 51890864, 51802321, 21975132 and 21991143) and the Young Elite Scientist Sponsorship Program by CAST (YESS) . - ISSN 1433-7851
   Перевод заглавия: Гибридизационное превращение sp2 в sp3 в ионных кристаллах при беспрецедентно низком давлении
Кл.слова (ненормированные):
borates -- hybridization transformation -- ionic crystal -- stress transfer
Аннотация: Under cold pressure sp1/sp2-to-sp3 hybridization transformation has been exclusively observed in covalent or molecular crystals overwhelmingly above ≈10 GPa, and the approaches to lower the transition pressure are limited on external heat-treatment and/or catalyzers. Herein we demonstrate that, by internal-lattice stress-transfer from ionic to covalent groups, the transformation can be significantly prompted, as shown in a crystal of LiBO2 under 2.85 GPa for the first case in ionic crystals. This unprecedentedly low transformation pressure is ascribed to the enhanced localized stress on covalent B−O frames transferred from ionic Li−O bonds in LiBO2, and accordingly the corresponding structural feature is summarized. This work provides an internal structural regulation strategy for pressure-reduction of the s-p orbital hybridization transformation and extends the sp1/sp2-to-sp3 transformation landscape from molecular and covalent compounds to ionic systems.

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Держатели документа:
Functional Crystals Lab, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
Laboratory of Crystal Physics, Kirensky Institute of Physics, SB RAS, Krasnoyarsk, 660036, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, 680021, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
School of Materials Science and Engineering, Peking University, Beijing, 100871, China
Center for High Pressure Science & Technology Advanced Research, Beijing, 100094, China
Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100101, China
School of Materials Science and Engineering, TKL of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin, 300350, China
University of Chinese Academy of Sciences, Beijing, 100049, China

Доп.точки доступа:
Jiang, X.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Wang, N.; Wang, Y.; Wen, T.; Dong, Z.; Liu, Y.; Li, W.; Lin, Z.
}
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10.

    sp2 to sp3 hybridization transformation in ionic crystals under unprecedentedly low pressure / X. Jiang, M. S. Molokeev, N. Wang [et al.] // Angew. Chem. - 2022. - Vol. 134, Is. 44. - Ст. e202208247, DOI 10.1002/ange.202208247. - Cited References: 48. - The authors acknowledge Zhuohong Yin for useful discussions and the experimental time provided by the 4W2 beam line of the Beijing Synchrotron Radiation Facility (BSRF). This work was supported by the National Scientific Foundations of China (Grants 51702330, 11974360, 51872297, 51890864, 51802321, 21975132 and 21991143) and the Young Elite Scientist Sponsorship Program by CAST (YESS) . - ISSN 0044-8249. - ISSN 1521-3757
   Перевод заглавия: Гибридизационное превращение sp2 в sp3 в ионных кристаллах при беспрецедентно низком давлении
Кл.слова (ненормированные):
borates -- hybridization transformation -- ionic crystal -- stress transfer
Аннотация: Under cold pressure sp1/sp2-to-sp3 hybridization transformation has been exclusively observed in covalent or molecular crystals overwhelmingly above ≈10 GPa, and the approaches to lower the transition pressure are limited on external heat-treatment and/or catalyzers. Herein we demonstrate that, by internal-lattice stress-transfer from ionic to covalent groups, the transformation can be significantly prompted, as shown in a crystal of LiBO2 under 2.85 GPa for the first case in ionic crystals. This unprecedentedly low transformation pressure is ascribed to the enhanced localized stress on covalent B−O frames transferred from ionic Li−O bonds in LiBO2, and accordingly the corresponding structural feature is summarized. This work provides an internal structural regulation strategy for pressure-reduction of the s-p orbital hybridization transformation and extends the sp1/sp2-to-sp3 transformation landscape from molecular and covalent compounds to ionic systems.

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Держатели документа:
Functional Crystals Lab, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
Laboratory of Crystal Physics, Kirensky Institute of Physics, SB RAS, Krasnoyarsk, 660036, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, 680021, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
School of Materials Science and Engineering, Peking University, Beijing, 100871, China
Center for High Pressure Science & Technology Advanced Research, Beijing, 100094, China
Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100101, China
School of Materials Science and Engineering, TKL of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin, 300350, China
University of Chinese Academy of Sciences, Beijing, 100049, China

Доп.точки доступа:
Jiang, X.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Wang, N.; Wang, Y.; Wen, T.; Dong, Z.; Liu, Y.; Li, W.; Lin, Z.
}
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