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    Magnetic mechanisms of pairing in strongly correlated electron system of copper oxides / S. G. Ovchinnikov [et al.] // arXiv. - 2015. - Ст. eprint arXiv:1510.08640. - Cited References: 214. - The authors acknowledge support from FCP Scientific and Research-and-Educational Personnel of Innovative Russia for 2009-2013 (GK 16.740.12.0731 and GK 16.740.11.0740), RFBR (Grants 12-02-31534 and 12-02-31597), Siberian Federal University (Theme #F-11), Governmental support of leading scientific schools of Russia (NSh-1044.2012.2), Program of SB RAS #44, Presidium of RAS program #20.7. EIS, IAM, and MMK are grateful to The Dynasty Foundation and ICFPM forthe financial support. - In book.: Recent advances in superconductivity research", ed. by C.B. Taylor, 321 p., Nova Science Publishers Inc. New York, 2013 ISBN: 978-1-62618-406-0, Chapter 6
Рубрики:
Condensed matter--Strongly correlated electrons
   Superconductivity
Кл.слова (ненормированные):
strong electronic correlations -- cuprates -- Hubbard operators -- electronic structure -- quantum phase transitions -- magnetic mechanism of pairing
Аннотация: The multielectron LDA+GTB approach has been developed to calculate electronic structure of strongly correlated cuprates. At low energies the effective Hamiltonian of the t−t′−t"−t⊥−J∗−J⊥-model has been derived with parameters coming from the ab initio calculation for LSCO. The electronic structure of LSCO has been calculated self-consistently with the short-range antiferromagnetic order for various doping level. Two Lifshitz-type quantum phase transitions with Fermi surface topology changes have been found at dopings xc1=0.15 and xc2=0.24. Its effect on normal and superconducting properties has been calculated. The interatomic exchange parameter and its pressure dependence has been calculated within LDA+GTB scheme. The magnetic mechanisms of d-wave pairing induced by static and dynamical spin correlations are discussed. Simultaneous treatment of magnetic and phonon pairing results in the conclusion that both contributions are of the same order. For two layer cuprates like YBCO the interlayer hopping and exchange effects on the electronic structure and doping dependence of Tc is discussed as well as the Coulomb interaction induced mechanism of pairing.

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Доп.точки доступа:
Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Makarov, I. A.; Макаров, Илья Анатольевич; Shneyder, E. I.; Шнейдер, Елена Игоревна; Togushova, Yu.N.; Тогушова Ю.Н.; Gavrichkov, V. A.; Гавричков, Владимир Александрович; Korshunov, M. M.; Коршунов, Максим Михайлович
}
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    Euro-asian symposium "Trends in magnetism" (EASTMAG-2004) : Abstract book / Рос. акад. наук, Сиб. отд-ние, Ин-т физики им. Л.В. Киренского, Краснояр. гос. ун-т, Краснояр. гос. технич. ун-т, Урал. отд-ние , Ин-т физики металлов. Euro-asian symp. "Trends in magnetism" ; предс. орг. комит. К. С. Александров ; зам. предс. С. Г. Овчинников ; чл. орг. комит. В. А. Игнатченко [и др.]. - Krasnoyarsk : [б. и.], 2004. - 418 с. - Bibliogr. at the end of the articles - Auth. ind. - 350 экз. - Б. ц.
Перевод заглавия: Евро-азиатский симпозиум "Прогресс в магнетизме"
Приложение:
Program of Euro-asian symposium "Trends in magnetism" (EASTMAG-2004). - Krasnoyarsk : Kirensky Instit. Phys. SB RAS, 2004. - 83
    Содержание:
Fundamental magnetic properties
Transport phenomena and spin electronics
Magnetism and strongly correleted electron systems
Spin glasses, disordered magnetic systems
Dynamics of spin systems and magnetic resonances
Magnetooptics and X-ray magnetooptics
Magnetic mechanism of the superconductivity
Domain structure and magnetization processes
Thin magnetic films and multilayers
Magnetic particles and nanocrystalline materials
Molecular magnetism
Magnetic storage/memory and applications
   Перевод заглавия: Евро-азиатский симпозиум "Прогресс в магнетизме"

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

Доп.точки доступа:
Александров, Кирилл Сергеевич \предс. орг. ком.\; Aleksandrov, K. S.; Овчинников, Сергей Геннадьевич \зам. предс.\; Ovchinnikov, S. G.; Игнатченко, Вальтер Алексеевич \чл. орг. ком.\; Ignatchenko, V. A.; Сапожников, В. \чл. орг. ком.\; Патрин, Геннадий Семёнович \чл. орг. ком.\; Patrin, G. S.; Вальков, Валерий Владимирович \чл. орг. ком.\; Val'kov, V. V.; Волков, Никита Валентинович \чл. орг. ком.\; Volkov, N. V.; Казак, Наталья Валерьевна \чл. орг. ком.\; Kazak, N. V.; Российская академия наук; Сибирское отделение РАН; Институт физики им. Л.В. Киренского Сибирского отделения РАН; Красноярский государственный университет; Красноярский государственный технический университет; Институт физики металлов Уральского отделения РАН; Научный совет по физике конденсированных сред РАН; Научный совет РАН по физике низких температур; Красноярский научный центр Сибирского отделения РАН; Euro-asian symposium "Trends in magnetism" (2 ; 2004 ; Aug. 24-27 ; Krasnoyarsk); "Trends in magnetism", Euro-Asian Symposium (2 ; 2004 ; Aug. 24-27 ; Krasnoyarsk)
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(La0.4Eu0.6)0.7Pb0.3MnO3 single crystal: magnetic and transport properties; electron magnetic resonance measurements / K. G. Patrin [et al.] // Workshop INTAS - Sib. Branch of the RAS Sci. Cooperation on the Res. Project “New Layered 3d-Materials for Spintronics” / chairman G. A. Petrakovskii. - 2007. - P. 15
Аннотация: INTAS (The International Association for the Promotion of Cooperation with Scientists from the New Independent States of the Former Soviet Union) — международная ассоциация по содействию сотрудничеству с учёными новых независимых государств бывшего Советского Союза. Некоммерческая организация, финансировалась главным образом из бюджета Европейского Союза. Являлась крупнейшим фондом, поддерживающим научное сотрудничество между учёными стран бывшего СССР и Европейского Союза с 1993 г. Программы INTAS охватывали широкий круг научно-исследовательских проблем. 22 сентября 2006 года было принято решение о прекращении осуществления программы на основании рекомендации Европейской Комиссии. С 1 апреля 2007 года прекратилось распределение новых грантов.

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Доп.точки доступа:
Petrakovskii, G. A. \chairman\; Петраковский, Герман Антонович; Patrin, K. G.; Патрин, Константин Геннадьевич; Volkov, N. V.; Волков, Никита Валентинович; Petrakovskii, G. A.; Boni, P.; Clementyev, E.; Sablina, K. A.; Саблина, Клара Александровна; Eremin, E. V.; Еремин, Евгений Владимирович; Vasilev, V.; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; "New Layered 3d-Materials for Spintronics", Workshop INTAS - Siberian Branch of the Russian Academy of Sciences Scientific Cooperation on the Research Project(2007 ; March 20-23 ; Krasnoyarsk)
}
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EPR-determined anisotropy of the g-factor and magnetostriction of a Cu2MnBO5 single crystal with a ludwigite structure / A. A. Dubrovskiy [et al.] // JETP Letters. - 2017. - Vol. 106, Is. 11. - P. 716-719, DOI 10.1134/S0021364017230072. - Cited References:18. - This study was supported jointly by the Russian Foundation for Basic Research and the Government of the Krasnoyarsk Territory (project no. 16-42-243028). . - ISSN 0021-3640. - ISSN 1090-6487
Рубрики:
ELECTRON-SPIN-RESONANCE
Аннотация: Electron paramagnetic resonance (EPR) and magnetostriction of the Cu2MnBO5 single crystal have been studied. The EPR spectrum consists of a single Lorentzian line due to the exchange-coupled system of spins of Cu2+ and Mn3+ ions. It has been established experimentally that the g-factor in the paramagnetic region is strongly anisotropic and anomalously small, which is not typical of the exchange-coupled system of spins of Cu2+ and Mn3+ ions. At a temperature of 150 K, the g-factors along the crystallographic a, b, and c axes are 2.04, 1.96, and 1.87, respectively. Such small effective g-factor values can be due to the effect of the anisotropic Dzyaloshinskii-Moriya exchange interaction between the spins of Cu2+ and Mn3+ ions directed along the a axis. The presence of two Cu2+ and Mn3+ Jahn-Teller ions occupying four nonequivalent positions in the crystal is responsible for the absence of the inversion center. It is found that the behavior of the magnetostriction of Cu2MnBO5 is not typical of transition-metal crystals but is closer to the behavior of crystals containing rare-earth ions.

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Публикация на русском языке Анизотропия g-фактора, определенная методом ЭПР, и магнитострикция монокристалла Cu2MnBO5 со структурой людвигита [Текст] / А. А. Дубровский [и др.] // Письма в Журн. эксперим. и теор. физ. - 2017. - Т. 106 Вып. 11. - С. 685-688

Держатели документа:
Russian Acad Sci, Siberian Branch, Fed Res Ctr KRC, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Zavoisky Phys Tech Inst, Kazan 420029, Russia.

Доп.точки доступа:
Dubrovskiy, A. A.; Дубровский, Андрей Александрович; Rautskii, M. V.; Рауцкий, Михаил Владимирович; Moshkina, E. M.; Мошкина, Евгения Михайловна; Yatsyk, I. V.; Eremina, R. M.; Russian Foundation for Basic Research; Government of the Krasnoyarsk Territory [16-42-243028]
}
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Optimization of steel-surface hardening by carbon nanostructures followed by treatment with hIgh-intensity energy sources / G. S. Bocharov [et al.] // J. Surf. Invest. - 2018. - Vol. 12, Is. 1. - P. 27-32, DOI 10.1134/S102745101801007X. - Cited References: 14. - This study was supported by the Russian Science Foundation, project no. 16-19-10027. . - ISSN 1027-4510
Кл.слова (ненормированные):
metal surface hardening -- carbon nanomaterials -- laser irradiation -- electron-beam treatment -- microhardness
Аннотация: The effect whereby a steel surface is modified by its covering with a nanocarbon material followed by fast electron- or laser-beam irradiation is studied. The initial material is low-carbon steel. Soot produced via the thermal sputtering of graphite electrodes in an electric arc with the subsequent extraction of fullerenes is used as the nanocarbon coating. Due to the fact that nanocarbon-coated samples are irradiated with a 60-keV electron beam, the material microhardness enhances considerably. The dependence between the microhardness and the irradiation energy is nonmonotonic and reaches its maximum (about 600 ± 20 HV) under the condition that the electron-irradiation energy is 460 J/cm2 and the intensity is 1.53 kW/cm2. This corresponds to a fourfold increase in the microhardness. Electron-beam irradiation of the treated surface is accompanied by a 1.5–2-fold decrease in the friction coefficient. Experimental results are compared with data obtained under laser irradiation of the nanocarbon-coated steel surface.

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Публикация на русском языке Оптимизация упрочнения стальной поверхности углеродными наноструктурами с последующей обработкой высокоинтенсивными источниками [Текст] / Г. С. Бочаров [и др.] // Поверхность. - 2018. - № 1. - С. 33-39

Держатели документа:
National Research University “Moscow Power Engineering Institute”, Moscow, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Bocharov, G. S.; Eletskii, A. V.; Zakharenkov, A. V.; Zilova, O. S.; Sliva, A. P.; Terentyev, E. V.; Fedorovich, S. D.; Churilov, G. N.; Чурилов, Григорий Николаевич
}
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Volochaev, M. N.
Lorentz microscopy methods for magnetic domain structure study / M. N. Volochaev, L. I. Kveglis, Y. Y. Loginov // IOP Conf. Ser.: Mater. Sci. Eng. - 2017. - Vol. 255, Is. 1. - Ст. 012015, DOI 10.1088/1757-899X/255/1/012015. - Cited References: 12. - This research was supported by Fırat University Scientific Research Projects Unit MF.13.02). Authors acknowledge to Kemerli Firm (Turkey) for their material supports.
Кл.слова (ненормированные):
High resolution transmission electron microscopy -- Magnetic domains -- Magnetic structure -- Transmission electron microscopy
Аннотация: The capabilities of transmission electron microscope Hitachi HT7700 for magnetic domain structure (MDS) study of thin films using Lorentz transmission electron microscopy (LTEM) methods is discussed. Two methods of magnetic domain structure study (defocus method and aperture shift method, including low-angle electron diffraction (LAED)) in thin magnetic films were examined.

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Доп.точки доступа:
Kveglis, L. I.; Loginov, Yu. Yu.; Волочаев, Михаил Николаевич; International Scientific Conference Reshetnev Readings(20 ; 2016 ; Nov. 9-12 ; Krasnoyarsk)
}
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Reflection electron energy loss spectroscopy of structures based on silicon and transition metals / A. S. Parshin [et al.] // IOP Conf. Ser.: Mater. Sci. Eng. - 2017. - Vol. 255, Is. 1. - Ст. 012019, DOI 10.1088/1757-899X/255/1/012019. - Cited References: 24
Кл.слова (ненормированные):
Dissociation -- Electron emission -- Electron energy levels -- Electron scattering -- Electrons -- Energy dissipation -- Iron -- Iron compounds -- Silicides -- Silicon compounds -- Transition metals
Аннотация: The investigation of iron silicides FeSi2, FeSi and Fe5Si3 with the methods of reflection electron energy loss spectroscopy and inelastic electron scattering cross-section spectroscopy was carried out. It is shown that the shape and peak energy position of electron energy loss spectra are almost identical to silicides with different composition, while the amplitude of inelastic electron scattering cross-section spectra decreases with increasing of iron content. The decomposition of inelastic electron scattering cross-section spectra of FeSi2, FeSi and Fe5Si3 to Tougaard peaks is used for unresolved energy loss peaks analysis, determination its energies and identification bulk and surface peaks. The amplitude of fitting peak describing bulk plasmon excitation can be used for identification of the iron silicides with different composition.

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Доп.точки доступа:
Parshin, A. S.; Паршин, Анатолий Сергеевич; Igumenov, A. Y.; Mikhlin, Y. L.; Михлин, Юрий Леонидович; Pchelyakov, O. P.; Zhigalov, V. S.; Жигалов, Виктор Степанович; International Scientific Conference Reshetnev Readings(20 ; 2016 ; Nov. 9-12 ; Krasnoyarsk)
}
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Makarov, I. A.
Effect of electron-phonon interaction on the doping and temperature depended spectral function in cuprates / I. A. Makarov, S. G. Ovchinnikov // Superstripes 2017 : [absrtacts] / ed. A. Bianconi : Superstripes press, 2017. - Ст. 37.1. - P. 206. - (Science Series ; Vol. 11) . - ISBN 9788866830696
Аннотация: The generalized tight binding (GTB) method to calculate the electronic structure of strongly correlated electrons in cuprates is modified to incorporate also strong electronphonon interaction. By exact diagonalization of the p-d- Holstain model Hamiltonian for a separate CuO6 unit cell we find the multelectron and multiphonon local eigenstates that are used to construct a set of local Hubbard operators. Then we treat the intercell electron hopping t by the perturbation approach over small ratio t/U, where U is the charge transfer excitation energy. Without electron-phonon interaction we obtain the band of spin polaron and a set of local multiphonon Franck-Condon excitations. The electron-phonon interaction results in the hybridization of spin polaron and Franck Condon excitations that forms the polaronic band structure with strong temperature dependence. The temperature dependence of the polaronic band structure and Fermi surface is discussed. The peak of a spectral function at the top of the valence band has large width typical to the ARPES data and determined by a large number of the multiphonon excitations.

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Материалы конференции

Доп.точки доступа:
Bianconi, A. \ed.\; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Макаров, Илья Анатольевич; International Conference on Quantum in Complex Matter: Superconductivity, Magnetism and Ferroelectricity(2017 ; June 5-10 ; Ischia, Italy); Superstripes 2017. Quantum in Complex Matter: Superconductivity, Magnetism and Ferroelectricity(2017 ; June 5-10 ; Ischia, Italy)
}
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Orientational disorder and phase transitions in ammonium oxofluorovanadates, (NH4)3VOF5 and (NH4)3VO2F4 / A. A. Udovenko [и др.] // Acta Crystallogr. B. - 2017. - Vol. B73. - P. 1085-1094, DOI 10.1107/S2052520617012422. - Cited References: 50. - We thank A. S. Krylov for recording the Raman spectra of (NH4)3VOF5 and A. M. Ziatdinov for recording the EPR spectra. . - ISSN 2052-5206
Кл.слова (ненормированные):
ammonium oxofluorovanadates -- phase transitions -- crystal structure -- dynamic orientational disorder -- electron-density profiles -- differential scanning microcalorimetry -- vibrational spectra
Аннотация: Single crystals of (NH4)3VOF5 and (NH4)3VO2F4 were obtained from aqueous fluoride solutions and phase transitions in these compounds were investigated using X-ray diffraction, differential scanning microcalorimetry (DSM) and vibrational spectroscopy. The room-temperature (RT) phases of these compounds belong to orthorhombic symmetry [Immm and I222, Z = 6, for (NH4)3VOF5 and (NH4)3VO2F4, respectively] with similar unit-cell parameters and two independent vanadium atoms. Above RT [at 350 and 440 K for (NH4)3VOF5 and (NH4)3VO2F4, respectively], the compounds undergo reversible phase transitions into high-symmetry dynamically disordered elpasolite-like (Fm3m, Z = 4) structures with six and 12 spatial orientations of the vanadium octahedron for (NH4)3VOF5 and (NH4)3VO2F4, respectively. The ligand atoms are distributed in a mixed (split) position of 24e + 96j, one of the ammonium groups is disordered on the tetrahedron 32f site, but another one forms eight spatial orientations due to disorder of its hydrogen atoms in the 96j position. DSM and spectroscopic data enable the phase transition from high temperature to room temperature to be connected with the transition from isotropic orientations of the octahedron to its two different dynamic states.

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Держатели документа:
Institute of Chemistry FEB RAS, 159 Pr. Stoletiya Vladivostoka, Vladivostok, 690022, Russian Federation
Kirensky Institute of Physics, Siberian Branch of RAS, Akademgorodok, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Udovenko, A. A.; Pogoreltsev, E. I.; Погорельцев, Евгений Ильич; Marchenko, Yu. V.; Laptash, N. M.
}
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10.

    Influence of the diagonal and off-diagonal electron-phonon interactions on the formation of local polarons and their band structure in materials with strong electron correlations / E. I. Shneyder [et al.] // J. Exp. Theor. Phys. - 2018. - Vol. 126, Is. 5. - P. 683-698, DOI 10.1134/S1063776118050059. - Cited References: 58. - We are grateful to V.I. Zinenko and V.A. Gavrichkov for useful discussions. This work was financially supported by the Russian Foundation for Basic Research (project no. 16-02-00098) and the Basic Research Program no. 12 of the Presidium of the Russian Academy of Sciences ("Fundamental Problems of High-Temperature Superconductivity"). . - ISSN 1063-7761. - ISSN 1090-6509
Рубрики:
HIGH-TEMPERATURE SUPERCONDUCTORS
   D-WAVE SUPERCONDUCTIVITY
   LATTICE
Аннотация: For systems with strong electron correlations and strong electron–phonon interaction, we analyze the electron–phonon interaction in local variables. The effects of the mutual influence of electron–electron and electron–phonon interactions that determine the structure of local Hubbard polarons are described. Using a system containing copper–oxygen layers as an example, we consider the competition between the diagonal and off-diagonal interactions of electrons with the breathing mode as the polaron band structure is formed within a corrected formulation of the polaron version of the generalized tight-binding method. The band structure of Hubbard polarons is shown to depend strongly on the temperature due to the excitation of Franck–Condon resonances. For an undoped La2CuO4 compound we have described the evolution of the band structure and the spectral function from the hole dispersion in an antiferromagnetic insulator at low temperatures with the valence band maximum at point (π/2, π/2) to the spectrum with the maximum at point (π, π) typical for the paramagnetic phase. The polaron line width at the valence band top and its temperature dependence agree qualitatively with angle-resolved photoemission spectroscopy for undoped cuprates.

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Публикация на русском языке Влияние диагонального и недиагонального электрон-фононных взаимодействий на формирование локальных поляронов и их зонной структуры в веществах с сильными электронными корреляциями [Текст] / Е. И. Шнейдер [и др.] // Журн. эксперим. и теор. физ. - 2018. - Т. 153 Вып. 5. - С. 820-837

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Fed Res Ctr, Krasnoyarsk Sci Ctr,Siberian Branch, Akad Gorodok 50, Krasnoyarsk 660036, Russia.
Federal State Autonomous Higher-Education Enterprise Siberian Federal University, pr. Svobodnyi 79, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Shneyder, E. I.; Шнейдер, Елена Игоревна; Makarov, I. A.; Макаров, Илья Анатольевич; Zotova, M. V.; Зотова, Мария Владимировна; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Russian Foundation for Basic Research [16-02-00098]; Basic Research Program of the Presidium of the Russian Academy of Sciences [12]
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11.

    Pressure-induced metallization of the Mott insulator FeXMn1−XS system / G. M. Abramova [et al.] // J. Magn. Magn. Mater. - 2018. - Vol. 465. - P. 775-779, DOI 10.1016/j.jmmm.2018.05.056. - Cited References: 23. - This study was supported by the KAKENHI JSPS, project no. 18540317. . - ISSN 0304-8853
   Перевод заглавия: Металлизация, вызванная давлением, в системе мотовских изоляторов FeXMn1−XS
Кл.слова (ненормированные):
Correlated electron systems -- Metal-insulator transitions -- High pressure and low temperature
Аннотация: Electrical resistivity of the FeXMn1−XS (0 ≤ X ≤ 0.29) single crystals based on the Mott insulator α-MnS is experimentally studied in the temperature range of 2–300 K at ambient pressure (P = 0) and at high (up to 30 GPa) hydrostatic pressures for x = 0.12. The electron subsystem of FeXMn1−XS undergoes insulator-to-metal transitions indicated by a resistivity drop by a factor of 106 with an increase in the chemical pressure (X) due to the cation substitution under ambient conditions and at the hydrostatic pressure (PC = 27 ± 5 GPa) for x = 0.12. The results obtained show that the hydrostatic pressure - and cation-substitution induced insulator-to-metal transitions in the α-MnS-based Mott compounds have similar mechanisms. The dependence of the critical hydrostatic pressure PC on the Fe content in FeXMn1−XS is established.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
KYOKUGEN, Center for Science and Technology under Extreme Conditions, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
Siberian Federal University, 79 Svobodny pr., Krasnoyarsk, Russian Federation

Доп.точки доступа:
Abramova, G. M.; Абрамова, Галина Михайловна; Hanzawa, A.; Kagayama, T.; Mita, Y.; Eremin, E. V.; Еремин, Евгений Владимирович; Zeer, G. M.; Zharkov, S. M.; Жарков, Сергей Михайлович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич
}
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12.

Electron paramagnetic resonance of Cr3+ ions in single crystals of yttrium aluminum borate YAl3(BO3)4 / A. Vorotynov [et al.] // Phys. Solid State. - 2018. - Vol. 60, Is. 9. - P. 1839-1843, DOI 10.1134/S1063783418090354. - Cited References: 13 . - ISSN 1063-7834
Аннотация: Single crystal of yttrium aluminum borate YAl3(BO3)4 doped with chromium ions (1 at %) was studied using electron paramagnetic resonance spectroscopy. It is shown that chromium ions introduced into the sample occupy yttrium ion sites in the crystal structure. The parameters of the spin Hamiltonian of Cr3+ ions in the YАl3(ВО3)4 matrix are determined at different temperatures. The sign of the fine structure parameter D allows the conclusion that the chromium ions in YА13(ВО3)4 single crystals have an easy-plane anisotropy.

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Публикация "на русском языке" Electron paramagnetic resonance of Cr3+ ions in single crystals of yttrium aluminum borate YAl3(BO3)4 [Текст] / A. Vorotynov [et al.] // Физ. тверд. тела. - 2018. - Т. 60 Вып. 9.- С.1793

Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Vorotynov, A. M.; Воротынов, Александр Михайлович; Shiyan, Ya. G.; Шиян, Ярослав Германович; Gudim, I. A.; Гудим, Ирина Анатольевна; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Vorotynova, O.
}
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13.

Val'kov, V. V.
Effect of total reflection from a symmetric two-channel device with fermion path nonanalyticity points induced by Rashba spin-orbit coupling / V. V. Val’kov, A. D. Fedoseev // Bull. Russ. Acad. Sci. Phys. - 2018. - Vol. 82, Is. 5. - P. 550-553, DOI 10.3103/S1062873818050313. - Cited References: 8. - The reported study was funded by Russian Foundation for Basic Research (project nos. 16-42-242036, 16-42-243056, and 17-42-240441), Government of Krasnoyarsk Territory, and Krasnoyarsk Region Science and Technology Support Fund to the research (project nos. 22/17, 24/17, and 02/17). . - ISSN 1062-8738
Кл.слова (ненормированные):
Electron transport -- Nonanalyticity -- Rashba spin-orbit coupling -- Regular polygon -- Spin-orbit couplings -- Symmetric systems -- Total reflection -- Transmission coefficients
Аннотация: The effect Rashba spin-orbit coupling has on transmission coefficient through a symmetric system with fermion path nonanalyticity points is illustrated using the example of a regular polygon-shaped chain. It is shown that the current passage through a device is blocked at the critical spin-orbit coupling values determined by the system’s geometry. At the near-critical spin-orbit coupling values, electron transport is possible only in a narrow range of energies.

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Публикация на русском языке Вальков, Валерий Владимирович. Эффект полного отражения электронов от симметричного двухканального устройства с точками неаналитичности фермионных траекторий, вызванный спин-орбитальным взаимодействием Рашбы [Текст] / В. В. Вальков, А. Д. Федосеев // Изв. РАН. Сер. физич. - 2018. - Т. 82 № 5. - С. 622-625

Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Fedoseev, A. D.; Федосеев, Александр Дмитриевич; Вальков, Валерий Владимирович
}
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14.

Effect of epitaxial alignment on electron transport from quasi-two-dimensional iron silicide α-FeSi2 nanocrystals into p-Si(001) / I. A. Tarasov [et al.] // Semiconductors. - 2018. - Vol. 52: 25th International Symposium on Nanostructures - Physics and Technology (Jun 26-30, 2017, Saint Petersburg, Russia), Is. 5. - P. 654-659, DOI 10.1134/S1063782618050330. - Cited References:31. - The work was supported by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research projects no. 16-42-243060 and 16-42-243035 and Russian Foundation for Basic Research, Government of the Republic of Khakassia, research project no. 17-42-190308. We also thank L.A. Solovyov for his assistance in XRD analysis. . - ISSN 1063-7826. - ISSN 1090-6479

РУБ Physics, Condensed Matter
Рубрики:
BETA-FESI2 THIN-FILMS
   LOW-TEMPERATURE
   GROWTH
   FESI2
   SI(100)
   SI(111)
Аннотация: Self-assembled growth of α-FeSi2 nanocrystal ensembles on gold-activated and gold-free Si(001) surface by molecular beam epitaxy is reported. The microstructure and basic orientation relationship (OR) between the silicide nanocrystals and silicon substrate were analysed. The study reveals that utilisation of the gold as catalyst regulates the preferable OR of the nanocrystals with silicon and their habitus. It is shown that electron transport from α-FeSi2 phase into p-Si(001) can be tuned by the formation of (001)-or (111)-textured α-FeSi2 nanocrystals ensembles. A current-voltage characteristic of the structures with different preferable epitaxial alignment (α-FeSi2(001)/Si(100) and α-FeSi2(111)/Si(100)) shows good linearity at room temperature. However, it becomes non-linear at different temperatures for different ORs due to different Schottky barrier height governed by a particular epitaxial alignment of the α-FeSi2/p-Si interfaces.

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Публикация на "русском языке" Effect of epitaxial alignment on electron transport from quasi-two-dimensional iron silicide α-FeSi2 nanocrystals into p-Si(001) [Текст] / I. A. Tarasov [et al.] // Физ. и техника полупроводников. - 2018. - Т. 52 : 25th International Symposium on Nanostructures - Physics and Technology (Jun 26-30, 2017, Saint Petersburg, Russia) Вып. 5.- с.523

Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Tarasov, I. A.; Тарасов, Иван Анатольевич; Rautskii, M. V.; Рауцкий, Михаил Владимирович; Yakovlev, I. A.; Яковлев, Иван Александрович; Volochaev, M. N.; Волочаев, Михаил Николаевич; Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund [16-42-243060, 16-42-243035]; Russian Foundation for Basic Research, Government of the Republic of Khakassia [17-42-190308]; International Symposium on Nanostructures - Physics and Technology(25th ; Jun 26-30, 2017 ; Saint Petersburg, Russia)
}
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15.

Effect of epitaxial alignment on electron transport from quasi-two-dimensional iron silicide α-FeSi2 nanocrystals into p-Si(001) / I. A. Tarasov [et al.] // Физ. и техника полупроводников. - 2018. - Т. 52: 25th International Symposium on Nanostructures - Physics and Technology (Jun 26-30, 2017, Saint Petersburg, Russia), Вып. 5. - с. 523, DOI 10.21883/FTP.2018.05.45867.56. - The work was supported by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research projects no. 16-42-243060 and 16-42-243035 and Russian Foundation for Basic Research, Government of the Republic of Khakassia, research project no. 17-42-190308. We also thank L.A. Solovyov for his assistance in XRD analysis. . - ISSN 0015-3222
Аннотация: Self-assembled growth of α-FeSi2 nanocrystal ensembles on gold-activated and gold-free Si(001) surface by molecular beam epitaxy is reported. The microstructure and basic orientation relationship (OR) between the silicide nanocrystals and silicon substrate were analysed. The study reveals that utilisation of the gold as catalyst regulates the preferable OR of the nanocrystals with silicon and their habitus. It is shown that electron transport from α-FeSi2 phase into p-Si(001) can be tuned by the formation of (001)-or (111)-textured α-FeSi2 nanocrystals ensembles. A current-voltage characteristic of the structures with different preferable epitaxial alignment (α-FeSi2(001)/Si(100) and α-FeSi2(111)/Si(100)) shows good linearity at room temperature. However, it becomes non-linear at different temperatures for different ORs due to different Schottky barrier height governed by a particular epitaxial alignment of the α-FeSi2/p-Si interfaces.

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"Переводная" версия Effect of epitaxial alignment on electron transport from quasi-two-dimensional iron silicide α-FeSi2 nanocrystals into p-Si(001) [Текст] / I. A. Tarasov [et al.] // Semiconductors. - 2018. - Vol. 52 : 25th International Symposium on Nanostructures - Physics and Technology (Jun 26-30, 2017, Saint Petersburg, Russia) Is. 5.- P.654-659

16.

    Вальков, Валерий Владимирович.
    Особенности электронных свойств наноустройств с неаналитичными токовыми каналами / В. В. Вальков, А. Д. Федосеев // Урал. междунар. зимняя шк. по физике полупроводников : 19 – 24 февраля 2018 г. : гопрограмма и тезисы докладов / чл. прогр. ком. В. В. Вальков. - 2018. - Секция 6 : Электронные свойства низкоразмерных систем. - Ст. L-7. - С. 86
   Перевод заглавия: Peculiarities of the electron properties of the nanodevices with the nonanalytical current channels

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

Доп.точки доступа:
Вальков, Валерий Владимирович \чл. прогр. ком.\; Val'kov, V. V.; Федосеев, Александр Дмитриевич; Fedoseev, A. D.; Уральская международная зимняя школа по физике полупроводников(22 ; 2018 ; февр. ; Екатеринбург); Институт физики металлов Уральского отделения РАН
}
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17.

Low-temperature absorption spectra and electron structure of HoFe3(BO3)4 single crystal / A. V. Malakhovskii [et al.] // Low Temp. Phys. - 2017. - Vol. 43, Is. 5. - P. 610-616, DOI 10.1063/1.4985208. - Cited References: 33 . - ISSN 1063-777X
Аннотация: Polarized absorption spectra of HoFe3(BO3)4 single crystal in the range of 8500-24 500 cm-1 were studied as a function of temperature beginning from 2K. The ground and excited electron states of Ho3+ were identified. The abrupt changes of the spectra at the reorientation phase transition at 4.7K were observed. The exchange splitting of some excited states were revealed and measured. They changed at the reorientation phase transition. Several vibronic transitions were observed. The splitting of absorption lines corresponding to the C2 local symmetry of the Ho ion was not observed. Moreover, spectra of some absorption bands correspond to splitting in the cubic crystal field. There are some absorption lines, whose polarization cannot be explained both in D3 and C2 local symmetries. Some lines appear or disappear as a result of the transition from the easy axis to the easy plane state of the crystal. All these observations testify to the substantial changes of the local magnetic and structural properties in the excited states of the Ho3+ ion and to the strong influence of the magnetic moments orientation on the polarization of the electron transitions.

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Публикация "на русском языке" Low-temperature absorption spectra and electron structure of HoFe3(BO3)4 single crystal [Текст] / A. V. Malakhovskii [et al.] // Физ. низких температур : Физико-технический институт низких температур им. Б. И. Веркина НАН Украины, 2017. - Т. 43 Вып. 5.- С.764-771

Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk, Russian Federation
B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkov, Ukraine

Доп.точки доступа:
Malakhovskii, A. V.; Малаховский, Александр Валентинович; Gnatchenko, S. L.; Kachur, I. S.; Piryatinskaya, V. G.; Gudim, I. A.; Гудим, Ирина Анатольевна
}
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18.

    Structure and magnetic properties of titanium nickelide nanoparticles synthesized by pulsed laser ablation method / A. K. Drozdova [et al.] // J. Phys. Conf. Ser. - 2017. - Vol. 857, Is. 1. - Ст. 012007, DOI 10.1088/1742-6596/857/1/012007. - Cited References: 9 . - ISSN 1742-6588
   Перевод заглавия: Структура и магнитные свойства наночастиц никелида титана, синтезированных методом импульсной лазерной абляции
Кл.слова (ненормированные):
Ablation -- Coatings -- High resolution transmission electron microscopy -- Laser ablation -- Nanomagnetics -- Nanoparticles -- Synthesis (chemical) -- Titanium -- Transmission electron microscopy -- Equiatomic composition -- Magnetization values -- Ti atoms -- Titanium nickelide -- Pulsed lasers
Аннотация: We have successfully synthesized magnetic titanium nickelide nanoparticles with equiatomic composition by pulsed laser ablation method. Using transmission electron microscopy and microanalysis was revealed that particles represent the homogeneous conglomerates containing identical amount of Ni and Ti atoms. The magnetization value of nanoparticles was estimated.

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Доп.точки доступа:
Drozdova, A. K.; Cherepanov, V. N.; Svetlichny, V. A.; Kveglis, L. I.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; International Conference on Films and Coatings(13 ; 18-20 April 2017 ; St. Petersburg)
}
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19.

The regularities of phase formation in Fe3Si(111)/Si(111) structure at vacuum annealing / M. N. Volochaev [et al.] // J. Phys. Conf. Ser. - 2017. - Vol. 857, Is. 1. - Ст. 012053, DOI 10.1088/1742-6596/857/1/012053. - Cited References: 10 . - ISSN 1742-6588
Кл.слова (ненормированные):
Coatings -- High resolution transmission electron microscopy -- Molecular beam epitaxy -- Silicon -- Transmission electron microscopy -- Phase formations -- Polycrystalline -- Polycrystalline film -- Si(111) substrate -- Vacuum-annealing -- Annealing
Аннотация: The regularities of phase formation and thermal stability in Fe3Si(111)/Si(111) structure at stepped vacuum annealing (350, 450 and 550 °C) were investigated. The layer of 32 nm Fe3Si was deposited onto Si(111) substrate by molecular beam epitaxy at 260 °C. Transmission electron microscopy (TEM) measurements demonstrated that the film thickness increases by ∼19 % at 350 °C annealing without changing the phase composition. The polycrystalline -FeSi sublayer was formed on the interface at 450 °C annealing. Further annealing at 550 °C led to the ∼ 80 nm polycrystalline film formation containing the crystallites of -FeSi, Fe5Si3, and β-FeSi2 phases.

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Доп.точки доступа:
Volochaev, M. N.; Волочаев, Михаил Николаевич; Tarasov, I. A.; Тарасов, Иван Анатольевич; Loginov, Yu. Yu.; Cherkov, A. G.; Kovalev, I. V.; International Conference on Films and Coatings(13th ; St. Petersburg)(18 - 20 April 2017)
}
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20.

Magnetic resonance studies of three-layer FeNi/Bi/FeNi films / K. G. Patrin [et al.] // J. Exp. Theor. Phys. - 2017. - Vol. 124, Is. 5. - P. 779-785, DOI 10.1134/S1063776117040069. - Cited References: 28 . - ISSN 1063-7761
Кл.слова (ненормированные):
Anisotropy -- Binary alloys -- Ferromagnetic resonance -- Interface states -- Interfaces (materials) -- Iron alloys -- Magnetic resonance -- Magnetism -- Nickel alloys -- Electron magnetic resonance -- Film structure -- Interface anisotropy -- Interlayer coupling -- Magnetic state -- Temperature dependence -- Three-layer -- Magnetic anisotropy
Аннотация: The interlayer coupling in three-layer FeNi/Bi/FeNi films is studied by electron magnetic resonance. The magnetic anisotropy at the permalloy–bismuth interface is shown to play a significant role in the formation of the magnetic state of the film structure. The interlayer coupling oscillation period is found to be about 8 nm. The interlayer coupling and the interface anisotropy and their temperature dependences are determined. © 2017, Pleiades Publishing, Inc.

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Публикация на русском языке Магниторезонансные исследования трехслойных пленок FeNi/Bi/FeNi [Текст] / К. Г. Патрин [и др.] // Журн. эксперим. и теор. физ. : Наука, 2017. - Т. 151 Вып. 5. - С. 916–923

Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Patrin, K. G.; Патрин, Константин Геннадьевич; Yarikov, S. A.; Patrin, G. S.; Yakovchuk, V. Yu.; Яковчук, Виктор Юрьевич; Lyamkin, A. I.
}
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