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    Размытый магнитный переход в квазиодномерном ферромагнетике PbMnBO4 / А. И. Панкрац [и др.] // XXXVIII Совещание по физике низких температур (НТ-38) : тезисы докладов: 17-22 сентября 2018 г., г. Москва - г. Ростов-на-Дону – пос. Шепси. - Ростов-на-Дону, 2018. - С. 50-51. - Библиогр.: 2. - Работа выполнена при поддержке РФФИ, грант 16-02-00563 . - ISBN 978-5-6041447-8-7
   Перевод заглавия: Smeared magnetic transition in a quasi-one-dimensional ferromagnet pBmNbo4 in the presence of an external magnetic field
Аннотация: В работе представлены результаты измерения полевых зависимостей магнитострикции и намагниченности в монокристаллах тетрафторидов редких земель YbLiF4 и DyLiF4 в сильных магнитных полях (до 8 Тесла) в различных направлениях приложенного внешнего магнитного поля при различных температурах (2 - 10К). Из анализа экспериментальных данных получены оценки параметров электрон-деформационного взаимодействия для данных соединений.
In this study field dependencies magnetostriction and magnetization of single crystals rare-earth tetrfluorides were measured in the strong magnetic fields (up to 8T) applied along and perpendicular to the crystallographic axis at different temperatures (2-10K). Approximate values of electron-deformations interaction were found from these experimental results.

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

Доп.точки доступа:
Панкрац, Анатолий Иванович; Pankrats, A. I.; Колков, Максим Игоревич; Kolkov, M. I.; Мартынов, Сергей Николаевич; Martynov, S. N.; Попков, Сергей Иванович; Popkov, S. I.; Красиков, Александр Александрович; Krasikov, A. A.; Балаев, Александр Дмитриевич; Balaev, A.D.; Совещание по физике низких температур(38 ; 2018 ; сент. ; пос. Шепси, Краснодарский край); Институт физических проблем им. П. Л. Капицы РАН; Южный федеральный университет
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Transport properties of spintronic devices fabricated from ferromagnet/silicon hybrid structures / A. V. Lukyanenko [et al.] // Euro-asian symposium "Trends in magnetism" (EASTMAG-2019) : Book of abstracts / чл. конс. ком.: S. G. Ovchinnikov, N. V. Volkov [et al.] ; чл. прогр. ком. D. M. Dzebisashvili [et al.]. - 2019. - Vol. 1. - Ст. A.O8. - P. 66-67. - Cited References: 2. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund by project No. 18-42-243022 . - ISBN 978-5-9500855-7-4

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

Доп.точки доступа:
Ovchinnikov, S. G. \чл. конс. ком.\; Овчинников, Сергей Геннадьевич; Volkov, N. V. \чл. конс. ком.\; Волков, Никита Валентинович; Dzebisashvili, D. M. \чл. прогр. ком.\; Дзебисашвили, Дмитрий Михайлович; Lukyanenko, A. V.; Лукьяненко, Анна Витальевна; Shanidze, L. V.; Шанидзе, Лев Викторович; Volochaev, M. N.; Волочаев, Михаил Николаевич; Zelenov, F. V.; Baron, F. A.; Барон, Филипп Алексеевич; Yakovlev, I. A.; Яковлев, Иван Александрович; Tarasov, I. A.; Тарасов, Иван Анатольевич; Bondarev, I. A.; Бондарев, Илья Александрович; Varnakov, S. N.; Варнаков, Сергей Николаевич; Ovchinnikov, S. G.; Volkov, N. V.; Tarasov, A. S.; Тарасов, Антон Сергеевич; Российская академия наук; Уральское отделение РАН; Институт физики металлов им. М. Н. Михеева Уральского отделения РАН; Уральский федеральный университет им. первого Президента России Б.Н. Ельцина; Российский фонд фундаментальных исследований; Euro-Asian Symposium "Trends in MAGnetism"(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg)
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Kuzmin, E. V.
Thermodynamics of quasi-2-dimensional heisenberg-ferromagnet with single-ion-anisotropy / E. V. Kuzmin, G. A. Petrakovskii // Fiz. Tverd. Tela. - 1986. - Vol. 28, Is. 11. - P. 3551-3553. - Cited References: 4 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

WOS
Доп.точки доступа:
Petrakovskii, G. A.; Петраковский, Герман Антонович; Кузьмин, Евгений Всеволодович
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The modulated magnetic structure of alpha-Fe2O3 : Ga weak ferromagnet / Z. T. Azamatov [et al.] // Tech. Phys. - 2001. - Vol. 46, Is. 3. - P. 354-356, DOI 10.1134/1.1356491. - Cited References: 7 . - ISSN 1063-7842

РУБ Physics, Applied

Аннотация: The domain structure of a diluted weak alpha -Fe2O3 : Ga ferromagnet is considered. Magnetic fields of specific amplitudes and orientations applied in the basal plane of the crystal are found to produce nonuniform magnetic states due to a periodic deviation of the antiferromagnetic vector from the easy axis of crystallographic anisotropy. A phase diagram of the modulated magnetic state with the triad axis is constructed, and a dependence of the spatial period of modulation on an external magnetic field is studied. A phenomenological model and the nature of the magnetic superstructure discovered are discussed. (C) 2001 MAIK "Nauka/Interperiodica".

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Держатели документа:
Tashkent State Univ, Tashkent 700095, Uzbekistan
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН
Tashkent State University, Universitetskaya Ul. 95, Vuzgorodok, Tahskent, 700095, Uzbekistan
Kirenskii Inst. of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Azamatov, Z. T.; Karaev, A. A.; Sokolov, B. Y.; Fedorov, Y. M.
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Sandalov, I. S.
The kondo effect induced by a magnetic-field in a ferromagnet / I. S. Sandalov, A. N. Podmarkov // Phys. Lett. A. - 1985. - Vol. 109, Is. 1-2. - P. 76-78, DOI 10.1016/0375-9601(85)90397-4. - Cited References: 9 . - ISSN 0375-9601

РУБ Physics, Multidisciplinary

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Доп.точки доступа:
Podmarkov, A. N.; Подмарков, Александр Николаевич; Сандалов, Игорь Семёнович
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The generalized method of quantitative description of the uniaxial anisotropy in weak ferromagnet rhombohedral calcite type structure crystals with S-state ions / G. V. Bondarenko [et al.] // J. Magn. Magn. Mater. - 2013. - Vol. 335. - P. 90-96, DOI 10.1016/j.jmmm.2013.01.037. - Cited References: 35 . - ISSN 0304-8853
Кл.слова (ненормированные):
Weak ferromagnetism -- Magnetic anisotropy -- Impurity
Аннотация: The method for investigation of the uniaxial and hexagonal anisotropies in weakly ferromagnetic rhombohedral FeBO3 crystals with the Fe2þ magnetic impurity with the use of the single-ion and pair approximation has been developed. In the framework of this method, a quantitative discrepancy between theoretical and experimental data on a uniaxial ﬁeld has been eliminated. The energy contributions to the hexagonal anisotropy that are caused by the Dzyaloshinsky–Moriya interaction, the crystal ﬁeld of Fe3þ ions and the temperature dependence of this anisotropy were analytically treated. The experimental temperature dependence of the hexagonal anisotropy of FeBO3 crystals is explained. It is shown that the compensation point and the typical temperature dependence of the hexagonal anisotropy result from the competition of the contributions of Fe3þ and Fe2þ ions. It is shown that respective considerable contributions to the anisotropy of Fe3þ and Fe2þ ions are made by the cubic symmetry and the uniaxial symmetry of the exchange ‘‘single-ion’’ type. The anisotropy constants for FeBO3 crystal was obtained by using the described results. It was shown, that for the calcite type structure crystals (iron borate and manganese carbonate) with S-state ions, the single ion and pair models (which previously raised doubts in their validity and accuracy) describe the experimental data good enough.

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

Доп.точки доступа:
Bondarenko, G. V.; Бондаренко, Геннадий Васильевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Rudenko, V. V.; Руденко, Валерий Васильевич; Sosnin, V. M.; Соснин, Виктор Михайлович; Tugarinov, V. I.; Тугаринов, Василий Иванович; Vorotynov, A. M.; Воротынов, Александр Михайлович
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ZAKHAROV, Y. V.
THE ENERGY-SPECTRUM OF CONDUCTION ELECTRONS IN A FERROMAGNET WITH DOMAIN-STRUCTURE / Y. V. ZAKHAROV, L. S. TITOV // Solid State Commun. - 1985. - Vol. 53, Is. 5. - P. 447-450, DOI 10.1016/0038-1098(85)91054-3. - Cited References: 8 . - ISSN 0038-1098

РУБ Physics, Condensed Matter

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Держатели документа:
L.V. Kirensky Institute of Physics, Krasnoyarsk, 660036, Russian Federation
ИФ СО РАН
Доп.точки доступа:
TITOV, L. S.
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Synthesis of 3-terminal ferromagnet/silicon spintronics devices and their transport properties / A. S. Tarasov [et al.] // Nanostructures: physics and technology : proc. 26th Int. symp. - 2018. - P. 245-246. - Cited References: 9 . - ISBN 978-985-7202-35-5

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Доп.точки доступа:
Tarasov, A. S.; Тарасов, Антон Сергеевич; Lukyanenko, A. V.; Лукьяненко, Анна Витальевна; Bondarev, I. A.; Бондарев, Илья Александрович; Rautskii, M. V.; Рауцкий, Михаил Владимирович; Baron, F. A.; Барон, Филипп Алексеевич; Smolyarova, T. E.; Смолярова, Татьяна Евгеньевна; Yakovlev, I. A.; Яковлев, Иван Александрович; Varnakov, S. N.; Варнаков, Сергей Николаевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Volkov, N. V.; Волков, Никита Валентинович; Nanostructures: Physics and Technology, International Symposium(26 ; 2018 ; June ; 18-22 ; Minsk, Belarus); Институт физики им. Б. И. Степанова НАН Беларуси; Санкт-Петербургский национальный исследовательский Академический университет Российской академии наук; Физико-технический институт им. А.Ф. Иоффе РАН; Научно-технологический центр микроэлектроники и субмикронных гетероструктур Российской академии наук
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Subterahertz and terahertz spin and lattice dynamics of the insulating ferromagnet PbMnBO4 / M. A. Prosnikov, M. E. Bal, M. I. Kolkov [et al.] // Phys. Rev. Res. - 2022. - Vol. 4, Is. 1. - Ст. 013004, DOI 10.1103/PhysRevResearch.4.013004. - Cited References: 62. - M.A.P. greatly acknowledges D. A. Andronikova for aid, B. T. Crow for fruitful discussions, and P. Albers for technicalassistance. Crystal growth was supported by RFBR and the Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science, through Research Project No. 20-42-240006. The theoretical part of the spin dynamics calculations was supported by BASIS Foundation Grant No. 21-1-4-33-1. The support of HFML-RU/NWO-I, a member of the European Magnetic Field Laboratory (EMFL) , is acknowledged . - ISSN 2643-1564

РУБ Physics, Multidisciplinary
Рубрики:
LIGHT-SCATTERING
ANTI-STOKES
BRILLOUIN-SCATTERING
Аннотация: Orthorhombic PbMnBO4 is a rare example of an insulating ferromagnet in which the magnetic properties, in particular the strong magnetic anisotropy, are determined by the Mn3+ Jahn-Teller ion. Here, we report on the detailed investigation of magnetic excitations in the subterahertz and terahertz frequency ranges, as well as lattice excitations in the terahertz range. Using polarized azimuthally resolved Raman spectroscopy, four branches of magnetic excitations were observed and assigned to one acoustic and three optical one-magnon modes. The coupling between ferromagnetic ordering at TC=31K and the Jahn-Teller distortions of [MnO6] octahedra due to the spin-phonon interaction was directly observed for some specific phonon modes involved in these distortions. A spin-wave Hamiltonian was developed that allowed us to determine a unique set of exchange and effective anisotropy parameters. The intensity ratio of the anti-Stokes to Stokes acoustic magnon peaks is found to be anomalous and directly indicates the involvement of the magneto-optical parameters in the magnetic Raman scattering process.

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Держатели документа:
Radboud Univ Nijmegen, High Field Magnet Lab, EMFL, Toernooiveld 7, NL-6525 ED Nijmegen, Netherlands.
Radboud Univ Nijmegen, Inst Mol & Mat, Heyendaalseweg 135, NL-6525 AJ Nijmegen, Netherlands.
Ioffe Inst, St Petersburg 194021, Russia.
Russian Acad Sci, Siberian Branch, Fed Res Ctr KSC, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Sch Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Prosnikov, M. A.; Bal, M. E.; Kolkov, M. I.; Колков, Максим Игоревич; Pankrats, A. I.; Панкрац, Анатолий Иванович; Pisarev, R., V; Christianen, P. C. M.; RFBRRussian Foundation for Basic Research (RFBR); Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science [20-42-240006]; BASIS Foundation [21-1-4-33-1]; HFML-RU/NWO-I, a member of the European Magnetic Field Laboratory (EMFL)
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10.

Spin accumulation in the Fe3Si/n-Si epitaxial structure and related electric bias effect / A. S. Tarasov, A. V. Luk'yanenko, I. A. Bondarev [et al.] // Tech. Phys. Lett. - 2020. - Vol. 46, Is. 7. - P. 665-668, DOI 10.1134/S1063785020070135. - Cited References: 17. - This study was supported by the Russian Foundation for Basic Research, the Government of Krasnoyarsk krai, and the Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activities (project no. 18-42-243022), and a Grant of the Government of the Russian Federation for Creation of World Level Laboratories (agreement no. 075-15-2019-1886) . - ISSN 1063-7850. - ISSN 1090-6533

РУБ Physics, Applied
Рубрики:
TRANSPORT
Кл.слова (ненормированные):
iron silicide -- ferromagnet/semiconductor structures -- Hanle effect -- spin accumulation -- electric spin injection
Аннотация: The electrical injection of the spin-polarized current into silicon in the Fe3Si/n-Si epitaxial structure is demonstrated. The spin accumulation effect is examined by measuring the local and nonlocal voltage in a special four-terminal device. The observed effect of the electric bias on the spin signal is discussed and compared with the results obtained for ferromagnet/semiconductor structures.

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Публикация на русском языке Эффект спиновой аккумуляции в эпитаксиальной структуре Fe3Si/n-Si и влияние на него электрического смещения [Текст] / А. С. Тарасов, А. В. Лукьяненко, И. А. Бондарев [и др.] // Письма в Журн. техн. физ. - 2020. - Т. 46 № 13. - С. 43-46

Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Tarasov, A. S.; Тарасов, Антон Сергеевич; Luk'yanenko, A. V.; Лукьяненко, Анна Витальевна; Bondarev, I. A.; Бондарев, Илья Александрович; Yakovlev, I. A.; Яковлев, Иван Александрович; Varnakov, S. N.; Варнаков, Сергей Николаевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Volkov, N. V.; Волков, Никита Валентинович; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of Krasnoyarsk krai; Krasnoyarsk Territorial Foundation [18-42-243022]; Grant of the Government of the Russian Federation for Creation of World Level Laboratories [075-15-2019-1886]
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11.

Valkov, V. V.
Spectrum of excitations of an easy-plane ferromagnet (s = 3/2) in a magnetic-field / V. V. Valkov, T. A. Valkova, S. G. Ovchinnikov // Phys. Status Solidi B. - 1987. - Vol. 142, Is. 1. - P. 255-263, DOI 10.1002/pssb.2221420126. - Cited References: 22 . - ISSN 0370-1972

РУБ Physics, Condensed Matter

WOS
Доп.точки доступа:
Valkova, T. A.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Val'kov, V. V.
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12.

Martynov, S. N.
Single-ion weak antiferromagnetism and spin-flop transition in a two-sublattice ferromagnet / S. N. Martynov // Phys. Solid State. - 2020. - Vol. 62, Is. 7. - P. 1165-1171, DOI 10.1134/S1063783420070148. - Cited References: 26. - This study was supported by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk krai, and the Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activity, project no. 18-42-240008 “Effect of the Magnetic Structure on the Magnetodielectric Properties of Oxide Crystallites Containing Stereoactive Pb 2+ and Bi 3+ Ions” . - ISSN 1063-7834
Кл.слова (ненормированные):
ferromagnetism -- single-ion anisotropy -- orientational phase transition
Аннотация: The ground state of a Heisenberg ferromagnet with the noncollinear single-ion anisotropy axes of two magnetic sublattices has been investigated in an external magnetic field applied in the anisotropy axes plane. Noncollinearity of the sublattice local anisotropy axes leads to a new effect called the orientational first-order spin-flop phase transition. The transition field depends on the single-ion anisotropy value and sublattice local axes orientation. An analysis of the stability of magnetic states shows that the transition is accompanied by the hysteretic field dependence of the magnetization. The dependences of the spin-flop transition field, magnetization jump, and susceptibility on the single-ion anisotropy value and axes orientation have been determined. The results obtained are used to explain the field dependence of the magnetization in the PbMnBO4 ferromagnetic crystal.

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Публикация на русском языке Мартынов, Сергей Николаевич. Одноионный механизм слабого антиферромагнетизма и спин-флоп-переход в двухподрешеточном ферромагнетике [Текст] / С. Н. Мартынов // Физ. тверд. тела. - 2020. - Т. 62 Вып. 7. - С. 1036-1042

Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Мартынов, Сергей Николаевич
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13.

VALKOV, V. V.
PHASE-TRANSITIONS IN ANISOTROPIC NON-HEISENBERG MAGNETS WITH A TENSOR ORDER PARAMETER / V. V. VALKOV, B. V. FEDOSEEV // Fiz. Tverd. Tela. - 1990. - Vol. 32, Is. 12. - P. 3522-3530. - Cited References: 13 . - ISSN 0367-3294

РУБ Physics, Condensed Matter
Рубрики:
BIQUADRATIC EXCHANGE
FERROMAGNET

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Доп.точки доступа:
FEDOSEEV, B. V.
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14.

Martynov, S. N.
Phase diagram of the ground state of a classical anisotropic frustrated ferromagnet / S. N. Martynov, V. I. Tugarinov // JETP Letters. - 2017. - Vol. 106, Is. 1. - P. 30-34, DOI 10.1134/S0021364017130124. - Cited References:25 . - ISSN 0021-3640. - ISSN 1090-6487

РУБ Physics, Multidisciplinary
Рубрики:
COMPETING INTERACTIONS
HEISENBERG FERRIMAGNET
CHAIN
Аннотация: The phase diagram of the ground state is obtained for the one-dimensional easy-axis model of classical spins coupled by ferromagnetic and antiferromagnetic exchanges between nearest and next-nearest neighbors, respectively. The parameters of the incommensurate magnetic structure with a variable step (soliton lattice) are calculated in the mean field approximation from the condition of the collinearity of spins to the effective exchange fields in the continuous approximation. The ground state of the soliton lattice and interfaces between soliton and collinear (ferromagnetic and "up-up-down-down") phases are determined by the numerical minimization of the average energy over the initial angular velocity of spins.

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Публикация на русском языке Мартынов, Сергей Николаевич. Фазовая диаграмма основного состояния классического анизотропного фрустрированного гейзенберговского ферромагнетика [Текст] / С. Н. Мартынов, В. И. Тугаринов // Письма в ЖЭТФ : Наука, 2017. - Т. 106 Вып. 1. - С. 34-38

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Fed Res Ctr,Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Tugarinov, V. I.; Тугаринов, Василий Иванович; Мартынов, Сергей Николаевич
}
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15.

Peculiarities of magnetization reversal in exchange-coupled ferro/ferromagnet NiFe/CoP film structures / G. I. Frolov [et al.] // Tech. Phys. Lett. - 2014. - Vol. 40, Is. 3. - P. 245-248, DOI 10.1134/S1063785014030286. - Cited References: 9 . - ISSN 1063-7850. - ISSN 1090-6533

РУБ Physics, Applied
Рубрики:
BILAYERS
Аннотация: The effect of layer thicknesses on the magnetic properties and mechanism of magnetization reversal in exchange-coupled NiFe/CoP film structures has been studied. The process of magnetization reversal was studied by analysis of the magnetic-induction and magneto-optical hysteresis loops. It is established that, as the thicknesses of layers in the NiFe/CoP film structure are increased, the system exhibits a transition from homogeneous magnetization reversal in the structure to exchange spring formation in the soft magnetic layer.

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Переводная версия Особенности процесса перемагничивания обменно-связанной ферро-ферромагнитной пленочной структуры NiFe/CoP [Текст] / Г. И. Фролов [и др.] // Письма в журн. техн. физ. : Наука, 2014. - Т. 40 Вып. 6. - С. 28-34

Доп.точки доступа:
Frolov, G. I.; Фролов, Георгий Иванович; Kiparisov, S. Ya.; Кипарисов, Семен Яковлевич; Seredkin, V. A.; Середкин, Виталий Александрович; Polyakova, K. P.; Полякова, Клавдия Павловна; Patrin, G. S.; Патрин, Геннадий Семёнович; Zhigalov, V. S.; Жигалов, Виктор Степанович; Balaev, A. D.; Балаев, Александр Дмитриевич
}
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16.

Peculiarities of a magnetic transition in a quasi-one-dimensional ferromagnet PbMnBO4 / A. Pankrats [et al.] // J. Magn. Magn. Mater. - 2019. - Vol. 471. - P. 416-422, DOI 10.1016/j.jmmm.2018.09.098. - Cited References: 22. - This work was supported by the Russian Foundation for Basic Research, Project no. 16-02-00563. The authors thank V. Zinenko and V. Sosnin for the fruitful and useful discussions. . - ISSN 0304-8853
Аннотация: Near the Curie temperature TC = 30.3 K, the temperature dependences of the magnetization and heat capacity of a single-crystal ferromagnet PbMnBO4 in the magnetic fields of 1, 3, 10 and 30 kOe are studied. In the strong magnetic fields, both the magnetic contribution to the specific heat and the nonlinearity of the field dependences of the magnetization are maintained up to the temperatures exceeding TC more than twice. It is assumed that in PbMnBO4 the difference between TC, the paramagnetic Curie temperature θ = 49 K and the broad temperature region above TC where the magnetic contribution to the specific heat is significant is due to the quasi-one-dimensional character of the magnetic structure of this ferromagnet. Using both the estimation of TC from the Ginzburg-Landau field theory and the θ value, the total exchange interaction parameters 2J ≈ 40.4 K (intrachain) and z′J′ ≈ 8.8 K (interchain) are determined, with z′ = 4 being the number of neighboring chains. The estimation shows that the Ginzburg-Landau field theory describing the quasi-one-dimensional behavior of PbMnBO4 is well applicable in the temperature range from to T = S2J ≈ 80 K. Above this temperature, the mean field approximation with the exchange parameter λθ based on the paramagnetic Curie temperature θ describes well the experimental temperature dependences of the magnetization in the strong magnetic field and the specific heat is determined by the lattice contribution.

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

Доп.точки доступа:
Pankrats, A. I.; Панкрац, Анатолий Иванович; Kolkov, M. I.; Колков, Максим Игоревич; Martynov, S. N.; Мартынов, Сергей Николаевич; Popkov, S. I.; Попков, Сергей Иванович; Krasikov, A. A.; Красиков, Александр Александрович; Balaev, A. D.; Балаев, Александр Дмитриевич; Gorev, M. V.; Горев, Михаил Васильевич
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17.

Frolov, G. I.
Parameters of the transition layer in the exchange-biased NiFe/DyCo film structure / G. I. Frolov, V. A. Seredkin, V. Y. Yakovchuk // Phys. Solid State. - 2011. - Vol. 53, Is. 7. - P. 1348-1352, DOI 10.1134/S1063783411070109. - Cited References: 19. - This study was supported the Ministry of Education and Science of the Russian Federation within the Analytic Department Targeted Program "Development of the Scientific Potential of the Higher School" (project nos. RNP 2.1.1/4399 and RNP 2.1.1/3498). . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
UNIDIRECTIONAL ANISOTROPY
   BILAYERS
   ANTIFERROMAGNET
   FERROMAGNET
Аннотация: The parameters of the transition layer in exchange-biased film structures are necessary agents to understand the mechanism of formation of unidirectional anisotropy. The layer thickness in NiFe/DyCo films has been determined by comparison of signals of the polar magneto-optical Kerr effect from a reference DyCo film and a hard magnetic layer of the exchange-biased structure. The layer thickness obtained is one order of magnitude larger than that characteristic of ferromagnet-antiferromagnet bilayer films. The mechanism of magnetization reversal of the structure under study has been explained within the model suggesting the formation of 180A degrees boundaries in the interface.

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Держатели документа:
[Frolov, G. I.
Seredkin, V. A.
Yakovchuk, V. Yu.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Frolov, G. I.
Seredkin, V. A.] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
[Yakovchuk, V. Yu.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Reshetnev Siberian State Aerospace University, pr. im. Gazety Krasnoyarskii rabochii 31, Krasnoyarsk 660014, Russian Federation
Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk 660041, Russian Federation

Доп.точки доступа:
Seredkin, V. A.; Середкин, Виталий Александрович; Yakovchuk, V. Y.; Фролов, Георгий Иванович
}
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18.

Martynov, S. N.
Orbital structure and magnetic phase diagram of the four-sublattice ferromagnet PbMnBO4 / S. N. Martynov // J. Magn. Magn. Mater. - 2023. - Vol. 570. - Ст. 170520, DOI 10.1016/j.jmmm.2023.170520. - Cited References: 20. - The author thanks A.D. Balaev for useful discussions of the magnetic measurements . - ISSN 0304-8853. - ISSN 1873-4766
Кл.слова (ненормированные):
Ferromagnets -- Magnetic anisotropy -- Noncollinear magnetic structures
Аннотация: A role of quadric and quartic single-ion anisotropy (SIA) of Mn3+-ions, dipole–dipole and Dzyaloshinsky–Moriya (DM) interactions for the magnetic ordering of the four-sublattice ferromagnet PbMnBO4 is investigated. A phase diagram of low-lying magnetic phases on the plane of the DM exchange components is obtained for different values of the SIA parameters. An effect of the isotropic interchain exchange on the spin orientation and, as a result, on the SIA energy in different magnetic phases is considered at the comparable values of the interactions. The determinative role of DM exchange for the magnetic anisotropy of PbMnBO4 is discussed.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia

Доп.точки доступа:
Мартынов, Сергей Николаевич
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19.

Nearly flat bands and ferromagnetism in the terminated Mn2C MXene / V. V. Kozak, N. A. Fedorova, Ju. S. Olshevskaya [et al.] // Comput. Condens. Matter. - 2023. - Vol. 35. - Ст. e00806, DOI 10.1016/j.cocom.2023.e00806. - Cited References: 76. - This study was supported by the Russian Science Foundation, project no. 21-12-00226 and the JCSS Joint Super Computer Center of the Russian Academy of Sciences. P.V.A. acknowledges the National Research Foundation of the Republic of Korea grant NRF 2021R1A2C1010455 . - ISSN 2352-2143
Кл.слова (ненормированные):
MXene -- Nanomaterials -- B3LYP -- Ferromagnet -- Spintronics -- 2D magnetism -- Half metal -- Hydroxylated/oxygenated/halogenated MXene
Аннотация: Using Density Functional Theory and Periodic Boundary Conditions it is shown that the hydroxylated/oxygenated/halogenated Mn2C monolayer is a 2D ferromagnetic material with a local Mn ions magnetic moment of 2.7μв per unit cell. Upon oxygenation the ferromagnetic coupling between Mn ions can be transformed into a superposition of magnetic states. In particular, the intrinsic magnetic moments in the hydroxylated/halogenated Mn2C monolayer can attain up to 6μB per unit cell. It is found that oxygen termination induces flat bands in the band structure, which evidence for the strong electron correlations and could lead to the implementation of exotic quantum phases in 2D crystals and high-temperature superconductivity. Along with the potential of the hydroxylated Mn2C monolayer characterized by the half-metallicity for application in spintronic devices as a perfect spin injector/detector, this material like other conventional MXenes is promising for the use in energy storage, electromagnetic interference shielding, and sensing.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia
Siberian Federal University, Krasnoyarsk, 660041, Russia
Department of Chemistry, College of Natural Sciences, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea

Доп.точки доступа:
Kozak, V. V.; Козак, Виктория Валерьевна; Fedorova, N. A.; Olshevskaya, Ju. S.; Kovaleva, A. V.; Shubin, A. A.; Tarasov, A. S.; Тарасов, Антон Сергеевич; Varnakov, S. N.; Варнаков, Сергей Николаевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Tomilin, F. N.; Томилин, Феликс Николаевич; Avramov, P. V.
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20.

METASTABLE STATE AND MAGNETIC-RESONANCE OF THE DOMAIN-STRUCTURE IN A FERROMAGNET / V. A. IGNATCHENKO [и др.] // Zhurnal Eksperimentalnoi Teor. Fiz. - 1990. - Vol. 98, Is. 2. - P. 593-610. - Cited References: 8 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary

WOS
Доп.точки доступа:
IGNATCHENKO, V. A.; KIM, P. D.; MIRONOV, E. Y.; KHVAN, D. C.
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