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Магнитный круговой дихроизм и природа ферромагнетизма в коллоидных наночастицах золота / А. Э. Соколов [и др.] // Письма в Журн. эксперим. и теор. физ. - 2013. - Т. 97, Вып. 2. - С. 104-107DOI 10.7868/S0370274X13020070
Аннотация: Измерены спектры оптического поглощения и магнитного кругового дихроизма (МКД) в интервале длин волн 350-1150 нм для серии коллоидных растворов наночастиц Au со средним размером 6.0 нм с различной степенью хиральности тиолятного покрытия. Вид спектров поглощения и МКД свидетельствует о дипольном характере межзонных переходов 5d-6(sp)-орбиталей. Отсутствие зависимости (в пределах погрешности эксперимента) МКД от вида покрытия позволяет исключить гипотезу об орбитальной природе магнетизма. Делается вывод о преобладающей роли спиновой поляризации в формировании магнетизма наночастиц золота с тиолятным покрытием.

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Переводная версия Magnetic Circular Dichroism and the Nature of Ferromagnetism. - [Б. м. : б. и.]

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

Доп.точки доступа:
Соколов, Алексей Эдуардович; Sokolov, A.E.; Овчинников, Сергей Геннадьевич; Ovchinnikov, S. G.; Заблуда, Владимир Николаевич; Zabluda, V.N.; Кальсин, А. М.; Зубавичус, Я. В.
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    Влияние охлаждения на возникновение намагниченности в никелиде титана / А. В. Достовалов, Ф. М. Носков, В. С. Жигалов, А. В. Нявро // Изв. Алт. гос. ун-та. - 2021. - № 1 (117). - С. 17-20, DOI 10.14258/izvasu(2021)1-02. - Библиогр.: 15 . - ISSN 1561-9443. - ISSN 1561-9451
   Перевод заглавия: Effect of cooling on the occurrence of magnetization in titanium nickelide
Кл.слова (ненормированные):
никелид титана -- ферромагнетизм -- микродеформации -- магнитометрия -- структура и свойства -- Ni-Ti alloy -- ferromagnetism -- microstrains -- magnetometry -- structure and properties
Аннотация: Вопрос возникновения намагниченности в сплавах системы никель-титан до сих пор изучен недостаточно. Наши ранние работы показали возможность возникновения намагниченности при многократных циклах прямых и обратных мартенситных переходах в сплаве Ni51Ti49, а также после деформации этого сплава растяжением до разрыва. Представленная работа посвящена выявлению эффекта намагниченности в образцах сплава Ni51Ti49 в результате их однократного охлаждения в жидком азоте, а также исчезновению намагниченности при нагревании образцов до комнатной температуры. С помощью индукционного петлескопа выявлено, что непосредственно после охлаждения образец имел высокую намагниченность. По мере нагревания образца петли гистерезиса изменяются, приобретая меньший наклон к горизонтальной оси, что свидетельствует об уменьшении магнитной индукции практически до нуля с повышением температуры до комнатной. Причину появления и исчезновения намагниченности можно связать с микродеформационными процессами, проходящими при охлаждении и нагревании образцов, связанными с прямым и обратным мартенситными переходами.
The occurrence of magnetization in alloys of the nickel-titanium system is still studied insufficiently. Our early work showed the possibility of magnetization arising during multiple cycles of forward and reverse martensitic transitions in the Ni51Ti49 alloy, as well as after deformation of this alloy by tensile stress to rupture. The purpose of this paper is devoted to revealing the effect of magnetization in samples of the Ni51Ti49 alloy as a result of their single cooling in liquid nitrogen, as well as the disappearance of magnetization when the samples are heated to room temperature. Using an induction hysteresigraph it is found out that the sample has a high magnetization immediately after cooling. As the sample is heated, the hysteresis loops change, acquiring a smaller inclination to the horizontal axis. It indicates a decrease in the magnetic induction to almost zero as the temperature rises to room temperature. The reason for the occurrence and disappearance of magnetization can be associated with micro-deformation processes related to forward and reverse martensitic transitions during cooling and heating of the samples.

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РИНЦ
Держатели документа:
Сибирский федеральный университет (Красноярск, Россия)
Институт физики им. Л.В. Киренского (Красноярск, Россия)
Национальный исследовательский Томский государственный университет (Томск, Россия)

Доп.точки доступа:
Достовалов, А. В.; Носков, Ф. М.; Жигалов, Виктор Степанович; Zhigalov, V. S.; Нявро, А. В.
}
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Zhandun, V. S.
The arising of ferromagnetism in Al-doped Mn2(Ga1−xAlx)C MAX phases / V. S. Zhandun, N. G. Zamkova, O. N. Draganyuk // J. Magn. Magn. Mater. - 2024. - Vol. 601. - Ст. 172193, DOI 10.1016/j.jmmm.2024.172193. - Cited References: 30. - The study was funded by a grant from the Russian Science Foundation # 23-22-10020 https://rscf.ru/project/23-22-10020/, Krasnoyarsk Regional Fund of Science. The calculations were performed with the computer resources of "Complex modeling and data processing research installations of mega-class" SRC "Kurchatovsky Institute" (http://ckp.urcki.ru). The ternary phase diagrams for the calculation of formation enthalpies were taken from Materials Project (https://materialsproject.org) and OQMD (https://oqmd.org/) databases . - ISSN 0304-8853. - ISSN 1873-4766
Кл.слова (ненормированные):
MAX phases -- First-principle calculations -- Doping -- Magnetic properties -- Ferromagnetism -- Exchange constants
Аннотация: The magnetic properties of ordered MAX phases Mn2(AlxGa1−x)C (x = 0.125, 0.25, 0.5, 0.75 and 0.875) have been studied within the DFT-GGA. We have found that increase of Al atom at A-site leads to the formation of the ferromagnetic phase with large magnetization of about 3.6 μB/f.u. The investigation of the phase stability is performed by comparing the total energy of the MAX phases with that of a set of competitive phases for calculation of the phase formation enthalpy. Up to a concentration of Al atoms x = 0.7 the compound remains thermodynamically stable. The exchange constants analysis shows the crucial role of exchange interactions between manganese atoms along the c-axis in forming of ferromagnetism. The magnetic transition temperature of Mn2(AlxGa1−x)C alloys increases with increase of the aluminum concentration.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
Professor L.F. Voino-Yasenetsky Krasnoyarsk State Medical University, Krasnoyarsk, 660022 Russia

Доп.точки доступа:
Zamkova, N. G.; Замкова, Наталья Геннадьевна; Draganyuk, O. N.; Драганюк, Оксана Николаевна; Жандун, Вячеслав Сергеевич
}
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Zenkov, A. A.
Weak ferromagnetism along the 3rd order of FeBo(3) / A. A. Zenkov, V. V. Rudenko, Y. M. Fedorov // Fiz. Tverd. Tela. - 1996. - Vol. 38, Is. 2. - P. 659-663. - Cited References: 15 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

WOS
Доп.точки доступа:
Rudenko, V. V.; Руденко, Валерий Васильевич; Fedorov, Y. M.
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Weak ferromagnetism in copper metaborate CuB2O4 / G. A. Petrakovskii [et al.] // Phys. Solid State. - 1999. - Vol. 41, Is. 7. - P. 1157-1161, DOI 10.1134/1.1130957. - Cited References: 10 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
SUSCEPTIBILITY
Аннотация: CuB2O4 single crystals have been grown and their magnetic and resonance properties have been investigated for the first time. The temperature dependence of the susceptibility was found to contain features at T = 21 and 10 K. The CuB2O4 single crystal transformed at T = 21 K to a weakly ferromagnetic state. The sharp drop in susceptibility at T 10 K is caused by a transition of the magnetic system of CuB2O4 to an antiferromagnetic state. The effective magnetic moment of the Cu2+ ion, determined from the high-temperature part of the magnetic susceptibility, is 1.77 mu(B). The room-temperature g factors are, respectively, 2.170 and 2.133 for magnetic field parallel and perpendicular to the c axis of the crystal. The antiferromagnetic resonance parameters in the weakly ferromagnetic and antiferromagnetic phases were measured. (C) 1999 American Institute of Physics. [S1063-7834(99)02907-X].

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Публикация на русском языке Слабый ферромагнетизм в метаборате меди CuB2O4 [Текст] / Г. А. Петраковский, К. А. Саблина, Д. А. Великанов [и др.] // Физ. тверд. тела. - 1999. - Т. 41 Вып. 7. - С. 1267-1271

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

Доп.точки доступа:
Petrakovskii, G. A.; Петраковский, Герман Антонович; Sablina, K. A.; Саблина, Клара Александровна; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Vorotynov, A. M.; Воротынов, Александр Михайлович; Volkov, N. V.; Волков, Никита Валентинович; Bovina, A. F.; Бовина, Ася Федоровна
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Weak ferromagnetism and magnetic-behavior of (CH3NH3)2MNCL4 quasidimetric antiferromagnetic / N. V. Fedoseeva [et al.] // Fiz. Tverd. Tela. - 1994. - Vol. 36, Is. 9. - P. 2609-2617. - Cited References: 8 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

WOS
Доп.точки доступа:
Fedoseeva, N. V.; Aplesnin, S. S.; Аплеснин, Сергей Степанович; Nikolaev, E. M.; Perepelitsa, A. P.
}
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    Weak antiferromagnet iron borate FeBO3. classical object for magnetism and the state of the art / S. G. Ovchinnikov, V. V. Rudenko, N. V. Kazak [et al.] // J. Exp. Theor. Phys. - 2020. - Vol. 131, Is. 1. - P. 177-188, DOI 10.1134/S106377612007016X. - Cited References: 74. - This work was supported by the Russian Science Foundation, project no. 18-12-00022 . - ISSN 1063-7761. - ISSN 1090-6509
Рубрики:
ELECTRONIC-STRUCTURE
   TRANSITION
   RESONANCE
   FERROMAGNETISM
   DEPENDENCE
Аннотация: The simple lattice and magnetic structure, the high Neel temperature, the narrow antiferromagnetic resonance line of FeBO3, and the narrow electron paramagnetic resonance line of its isostructural diamagnetic analogs MBO3:Fe3+(M = Ga, In, Sc, Lu) make iron borate unique for investigations and applications. Iron borate is a model crystal for numerous experimental and theoretical studies, including spin crossovers and metallization at megabar pressures and many-electron effects in optics and X-ray spectroscopy. The recent works dealing with the investigation of the properties of FeBO(3)are reviewed.

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Публикация на русском языке Слабый ферромагнетик борат железа FeBO3. Классический объект для магнетизма и современное состояние исследований [Текст] / С. Г. Овчинников, В. В. Руденко, Н. В. Казак [и др.] // Журн. эксперим. и теор. физ. - 2020. - Т. 158 Вып. 1. - С. 184-197

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

Доп.точки доступа:
Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Rudenko, V. V.; Руденко, Валерий Васильевич; Kazak, N. V.; Казак, Наталья Валерьевна; Edelman, I. S.; Эдельман, Ирина Самсоновна; Gavrichkov, V. A.; Гавричков, Владимир Александрович; Russian Science FoundationRussian Science Foundation (RSF) [18-12-00022]
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Vyzulin, S. A.
Ferromagnetic resonance in thin films of FexNi100−x / S. A. Vyzulin, N. E. Syr'ev, G. V. Skomorokhov // Bull. Russ. Acad. Sci. Phys. - 2021. - Vol. 85, Is. 9. - P. 1012-1015, DOI 10.3103/S106287382109032X. - Cited References: 9 . - ISSN 1062-8738
Кл.слова (ненормированные):
Ferromagnetic resonance -- Ferromagnetism -- Thin films -- Film structure -- Nanometer films -- Resonance characteristic -- S-theory -- Single layer -- Ferromagnetic materials
Аннотация: Magnetic resonance characteristics of FexNi100–x nanometer film systems are investigated. It is shown experimentally that Kittel’s theory of uniform ferromagnetic resonance in thin single-layer FexNi100−x film structures might be invalid.

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Публикация на русском языке Вызулин С. А. Ферромагнитный резонанс в тонких пленках FexNi100–x [Текст] / С. А. Вызулин, Н. Е. Сырьев, Г. В. Скоморохов // Изв. РАН. Сер. физич. - 2021. - Т. 85 № 9. - С. 1314-1317

Держатели документа:
Krasnodar Higher Military School, Krasnodar, 350035, Russian Federation
Moscow State University, Moscow, 119991, Russian Federation
Kirensky Institute of Physics, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Syr'ev, N. E.; Skomorokhov, G. V.; Скоморохов, Георгий Витальевич
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    Visible MCD spectroscopy and nature of room temperature ferromagnetism in hydrogenated Сo - and (Co+Al) - doped ZnO films / Yu. E. Samoshkina, I. S. Edel'man, D. A. Petrov [et al.] // Book of abstracts of The Eleventh Japanese-Mediterranean Workshop on Applied Electromagnetic Engineering for Magnetic, Superconducting, Multifunctional and Nanomaterials (JAPMED’11). - 2019. - P. 121-122
   Перевод заглавия: Видимая МКД-спектроскопия и природа ферромагнетизма при комнатной температуре в гидрированных пленках ZnO, легированных Co - и (Co+Al)

Доп.точки доступа:
Samoshkina, Yu. E.; Самошкина, Юлия Эрнестовна; Edel'man, I. S.; Эдельман, Ирина Самсоновна; Petrov, D. A.; Петров, Дмитрий Анатольевич; Chou, Hsiung; Hsiung Chou; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Japanese-Mediterranean Workshop on Applied Electromagnetic Engineering for Magnetic, Superconducting, Multifunctional and Nanomaterials (11 ; 2019 ; ; Batumi)
}
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10.

Val'kov, V. V.
Interplay of ferromagnetism and nontrivial topology in triple layers Te-Mn-Te of MnBi2Te4 / V. V. Val'kov, A. O. Zlotnikov, A. Gamov // Spin physics, Spin chemistry and Spin technology", International conference : abstracts : Kazan science week. - Kazan, 2023. - P. 210-211. - Cited References: 4. - РФН № 23-22-10021 ; Красноярский регион. фонд науки

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Держатели документа:
Kirensky Institute of Physics SB RAS

Доп.точки доступа:
Zlotnikov, A. O.; Злотников, Антон Олегович; Gamov, A.; Вальков, Валерий Владимирович; "Spin physics, spin chemistry, and spin technology", Internnational conference(2023 ; 25-30 Sept. ; Kazan, Russia); Казанский физико-технический институт им. Е. К. Завойского Казанского научного центра РАН; Казанский (Приволжский) федеральный университет; Казанский научный центр РАН
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11.

Val'kov, V. V.
Electron spectrum and heat capacity of heavy fermions in the canted phase of antiferromagnetic intermetallides / V. V. Val'kov, D. M. Dzebisashvili // J. Exp. Theor. Phys. - 2010. - Vol. 110, Is. 2. - P. 301-318, DOI 10.1134/S1063776110020147. - Cited References: 41. - This study was supported by the program "Quantum Physics of Condensed Media" of the Presidium of the Russian Academy of Sciences, interdisciplinary integration project no. 53 of the Siberian Branch of the Russian Academy of Sciences, and the Russian Foundation for Basic Research (project no. 07-02-00226). . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
PERIODIC ANDERSON MODEL
   PRESSURE-INDUCED SUPERCONDUCTIVITY
   KONDO-LATTICE
   FERROMAGNETISM
   FLUCTUATIONS
   COEXISTENCE
   CERHIN5
   SYSTEMS
   DIAGRAM
   CENISN
Кл.слова (ненормированные):
Antiferromagnetic phase -- Antiferromagnetics -- Antiferromagnets -- Electron spectrum -- Electronic heat capacity -- Energy spectra -- Experimental data -- External magnetic field -- Heat capacities -- Heavy fermion -- Low temperatures -- Magnetic sublattices -- Magnetic subsystems -- Sommerfeld constant -- Structural rearrangement -- Temperature dependence -- Antiferromagnetism -- Cerium -- Cerium compounds -- Fermions -- Magnetic fields -- Phase transitions -- Specific heat -- Spectroscopy -- Antiferromagnetic materials
Аннотация: The energy spectrum of heavy fermions in an external magnetic field is calculated for canted magnetic sublattices of antiferromagnetic intermetallides. This makes it possible to determine low-temperature features of electronic heat capacity of heavy-fermion antiferromagnets with the metal-type ground state taking into account the structural rearrangement of the magnetic subsystem. The calculated temperature dependences of the magnetization, heat capacity, and Sommerfeld constant in the vicinity of the point of transition to the antiferromagnetic phase correlate with experimental data obtained for heavy-fermion antiferromagnets PuGa3, Ce2Au2Cd, YbNiSi3, and PuPd5Al2.

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Публикация на русском языке Электронный спектр и теплоемкость тяжелых фермионов в скошенной фазе антиферромагнитных интерметаллидов [Текст] / В. В. Вальков, Д. М. Дзебисашвили // Журнал экспериментальной и теоретической физики. - Москва : Федеральное государственное унитарное предприятие "Академический научно-издательский, производственно-полиграфический и книгораспространительский центр Российской академии наук "Издательство "Наука", 2010. - Т. 137 № 2. - С. 341-360

Держатели документа:
[Val'kov, V. V.
Dzebisashvili, D. M.] Russian Acad Sci, Siberian Branch, Inst Phys, Krasnoyarsk 660036, Russia
[Val'kov, V. V.
Dzebisashvili, D. M.] Siberian Fed Univ, Krasnoyarsk 660075, Russia
[Val'kov, V. V.] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
ИФ СО РАН
Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Krasnoyarsk 660075, Russian Federation
Reshetnev Siberian State Aerospace University, Krasnoyarsk 660014, Russian Federation

Доп.точки доступа:
Dzebisashvili, D. M.; Дзебисашвили, Дмитрий Михайлович; Вальков, Валерий Владимирович
}
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12.

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

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

Доп.точки доступа:
Kuklin, A. V.; Куклин, Артем Валентинович; Kuzubov, A. A.; Кузубов, Александр Александрович; Kovaleva, E. A.; Mikhaleva, N. S.; Tomilin, F. N.; Томилин, Феликс Николаевич; Lee, H.; Avramov, P. V.
}
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13.

Transport properties and ferromagnetism of Co(x)Mn(1-x)Ssulfides / S. S. Aplesnin [et al.] // J. Exp. Theor. Phys. - 2008. - Vol. 106, Is. 4. - P. 765-772, DOI 10.1134/S1063776108040158. - Cited References: 39 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
GIANT VOLUME MAGNETOSTRICTION
   COLOSSAL MAGNETORESISTANCE
   MAGNETIC SEMICONDUCTORS
   ELECTRICAL-PROPERTIES
   ROOM-TEMPERATURE
   ALPHA-MNS
   SPINTRONICS
   TRANSITION
   FEXMN1-XS
   FIELDS
Кл.слова (ненормированные):
Coulomb interactions -- Current voltage characteristics -- Electromotive force -- Ferromagnetism -- Magnetic susceptibility -- Magnetization -- Thermoelectricity -- Transport properties -- Charge susceptibility -- External magnetic fields -- Temperature intervals -- Thermoelectromotive force -- Cobalt compounds
Аннотация: We have studied the resistivity and thermoelectromotive force (thermo emf) in a temperature range of T = 80-1000 K, the magnetic susceptibility and magnetization in a temperature range of T= 4.2-300 K at an external magnetic field of up to 70 kOe, and the structural characteristics of CoxMn1 - S-x sulfides (0 <= x <= 0.4). Anomalies in the transport properties of these compounds have been found in the temperature intervals Delta T-1 = 200-270 K and Delta T-2 = 530-670 K and at T-3 similar to T-N. The temperature dependences of the magnetic susceptibility, magnetization, and resistivity, as well as the current-voltage characteristics, exhibit hysteresis. In the domain of magnetic ordering at temperatures below the Neel temperature (TN), the anti ferromagnetic CoxMn1 - xS sulfides possess a spontaneous magnetic moment that is explained using a model of the orbital ordering of electrons in the t(2g) bands. The influence of the cobalt-ion-induced charge ordering on the transport and magnetic properties of sulfides has been studied. The calculated values of the temperatures corresponding to the maxima of charge susceptibility, which are related to a competition between the on-site Coulomb interaction of holes in various subbands and their weak hybridization, agree well with the experimental data.

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Держатели документа:
[Aplesnin, S. S.
Ryabinkina, L. I.
Romanova, O. B.
Velikanov, D. A.
Balaev, A. D.
Balaev, D. A.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Aplesnin, S. S.
Bandurina, O. N.] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
[Yanushkevich, K. I.
Galyas, A. I.
Demidenko, O. F.] Natl Acad Sci, Joint Inst Solid State & Semicond Phys, Minsk 220072, Byelarus
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Reshetnev Siberian State Aerospace University, Krasnoyarsk 660014, Russian Federation
Joint Institute of Solid State and Semiconductor Physics, National Academy of Sciences of Belarus, Minsk 220072, Belarus

Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Ryabinkina, L. I.; Рябинкина, Людмила Ивановна; Romanova, O. B.; Романова, Оксана Борисовна; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Balaev, A. D.; Балаев, Александр Дмитриевич; Balaev, D. A.; Балаев, Дмитрий Александрович; Yanushkevich, K. I.; Galyas, A. I.; Demidenko, O. F.; Bandurina, O. N.
}
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14.

Theoretical investigation of magnetic properties in interfaces of magnetic nanoparticles and amorphous carbons / S. -J. Sun [et al.] // J. Magn. Magn. Mater. - 2017. - Vol. 432. - P. 102-105, DOI 10.1016/j.jmmm.2017.02.001. - Cited References: 21. - We would like to thank the Ministry of Science and Technology, Taiwan, for the Grant No. MOST 104-2112-M-390-001 and 104-2923-M-390-001-MY3 (Shih-Jye Sun). The work is supported also by the President of Russia program of the leading scientific schools, Grant NSh-7559.2016.2. . - ISSN 0304-8853
Кл.слова (ненормированные):
Antiferroelectricity -- Antiferromagnetism -- Ferromagnetism -- Molecular dynamics -- Nanomagnetics -- Nanoparticles -- Spin waves -- Antiferro-magnetic interactions -- Antiferromagnetics -- Kondo interactions -- Magnetic nano-particles -- Molecular dynamics simulations -- Spinwave excitation -- Theoretical investigations -- Theoretical modeling -- Amorphous carbon
Аннотация: Based on the experimental finding of the exchange bias in amorphous carbon samples with embedded Co nanoparticles and on the graphited character of the amorphous carbon interface confirmed by molecular dynamics simulations we have proposed the interface of graphited carbon to be antiferromagnetic. A theoretical model, which comprises the Kondo interactions in the interfaces of Co nanoparticles and the induced antiferromagnetic interactions in the graphited carbons, is employed to evaluate the ferromagnetism of the interfaces of Co nanoparticles. We have shown that the ferromagnetism of interfaces of Co nanoparticles will be enhanced by the increase of antiferromagnetic interaction as well as the increase of electron density in the graphited carbons. In particular, we found that the antiferromagnetic interactions in graphited carbons will change the spin-wave excitation in interfaces of Co nanoparticles from the quasiacoustic mode to the quasioptical one. © 2017 Elsevier B.V.

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Держатели документа:
Department of Applied Physics, National University of Kaohsiung, Kaohsiung, Taiwan
Department of Applied Physics, National Pingtung University, Pingtung, Taiwan
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Sun, S.-J.; Hsu, Hua-Shu; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Chen, G.-L.
}
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15.

The microscopic origin of ferromagnetism in Fe silicides : Invited / I. S. Sandalov [et al.] // Int. workshop on actual probl. of cond. matt. phys. : Program. Book of abstracts / Fed. Res. Center KSC SB RAS, Kirensky Inst. of phys., Sib. Fed. Univ. - Krasnoyarsk, 2017. - P. 16

Материалы совещания

Доп.точки доступа:
Ovchinnikov, S. G. \предс. прогр. ком.\; Овчинников, Сергей Геннадьевич; Sandalov, I. S.; Zamkova, N. G.; Замкова, Наталья Геннадьевна; Zhandun, V. S.; Жандун, Вячеслав Сергеевич; Ovchinnikov, S. G.; Federal Research Center KSC SB RAS; Kirensky Institute of Physics; Siberian Federal Univercity; International Workshop on Actual Problems of Condensed Matter Physics(27 Mar. - 1 Apr. 2017 ; Krasnoyarsk / Cheremushki)
}
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16.

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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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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17.

    The effect of microstructural features on the ferromagnetism of nickel oxide nanoparticles synthesized in a low-pressure arc plasma / A. V. Ushakov, I. V. Karpov, L. Y. Fedorov [et al.] // Physica E. - 2020. - Vol. 124. - Ст. 114352, DOI 10.1016/j.physe.2020.114352. - Cited References: 31. - The work was performed with a support of the grant of the Russian Science Foundation (Project No. 16-19-10054 ). The electron microscopy investigations were conducted in the SFU Joint Scientific Center supported by the State assignment (#FSRZ-2020-0011) of the Ministry of Science and Higher Education of the Russian Federation . - ISSN 1386-9477
   Перевод заглавия: Влияние особенностей микроструктуры на ферромагнетизм наночастиц оксида никеля, синтезированных в дуговой плазме низкого давления
Кл.слова (ненормированные):
Nickel oxide -- Nanoparticles -- Band gap -- Magnetic properties
Аннотация: Nickel oxide nanoparticles were first synthesized by sputtering high-purity nickel in an oxygen plasma of a low-pressure arc discharge. The structure, morphology, and optical and magnetic properties of NiO nanoparticles were studied by XRD, TEM, FTIR, UV-VIS, and VSM. TEM images showed that the obtained NiO nanoparticles have a narrow particle size distribution and an average particle size of 12 nm. The XRD results and the processing of diffractograms by the Rietveld method showed that the obtained nanoparticles have a face-centered cubic lattice with an average particle size of 13 nm. With decreasing temperature, residual stresses increase and peaks corresponding to the superstructure appear. The band gap of NiO was determined from the optical absorption spectrum and amounted to 3.21 eV. Magnetic measurements showed that, at temperatures of 200 and 300 K, NiO nanoparticles, unlike bulk particles, exhibit ferromagnetic behavior, and at 5 K a magnetic hysteresis loop appears. Based on the studies, a dendritic model of the nanoparticle microstructure is proposed.

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Federal Research Center “Krasnoyarsk Scientific Center”, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Scientific Center”, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Ushakov, A. V.; Karpov, I. V.; Fedorov, L. Y.; Demin, V. G.; Goncharova, E. A.; Shaihadinov, A. A.; Zeer, G. M.; Zharkov, S. M.; Жарков, Сергей Михайлович
}
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18.

The appearance of ferromagnetism in beryllium ceramics / A. V. Pavlov, L. I. Kveglis, R. Nasibulin [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. 2. - Ст. K.P36. - P. 378. - Cited References: 2 . - ISBN 978-5-9500855-7-4

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
East Kazakhstan State University Ust-Kamenogorsk, Republic of Kazakhstan
Siberian Federal University
Tomsk State University

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; Pavlov, A. V.; Kveglis, L. I.; Квеглис, Людмила Иосифовна; Nasibulin, R.; Saprykin, D.; Shepovalova, L.; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Nemtsev, I. V.; Немцев, Иван Васильевич; Kantay, N.; 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)
Нет сведений об экземплярах (Источник в БД не найден)
}
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19.

Synthesis of the new oxocuprate Cu5Bi2B4O14 and investigation of its structural, magnetic, and resonant properties / G. A. Petrakovskii [et al.] // Phys. Solid State. - 2002. - Vol. 44, Is. 7. - P. 1339-1344, DOI 10.1134/1.1494633. - Cited References: 16 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
CUB2O4 COPPER METABORATE
FERROMAGNETISM
Аннотация: Single crystals of the new compound Cu5Bi2B4O14 are grown and its structural, magnetic, and resonant properties are investigated for the first time. It is found that the Cu5Bi2B4O14 crystal synthesized has a triclinic symmetry with space group P (1) over bar and the unit cell parameters a = 10.132 Angstrom, b = 9.385 Angstrom, c = 3.458 Angstrom, alpha = 105.443degrees, beta = 97.405degrees, gamma = 107.784degrees, and Z = 1. At a temperature of 24.5 K, the crystal undergoes a magnetic phase transition to the magnetically ordered state. The assumption is made that the ferrimagnetic structure of the Cu5Bi2B4O14 crystal consists of two ferromagnetic sublattices coupled through the antiferromagnetic exchange interaction. The unit cell of the crystal contains five copper ions, of which one ion belongs to the first sublattice and the other four ions form the second sublattice. Analysis of the resonant and magnetic static properties demonstrates that the Cu5Bi2B4O14 crystal exhibits an easy-axis magnetic anisotropy. The direction of the easy axis coincides with the c axis of the crystal, whereas the a and b axes are the hard magnetic axes with saturation fields approximately equal to 25 and 10 kOe, respectively. (C) 2002 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Organ Chem, Siberian Div, Novosibirsk 630090, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Petrakovskii, G. A.; Петраковский, Герман Антонович; Sablina, K. A.; Саблина, Клара Александровна; Pankrats, A. I.; Панкрац, Анатолий Иванович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Balaev, A. D.; Балаев, Александр Дмитриевич; Bayukov, O. A.; Баюков, Олег Артемьевич; Tugarinov, V. I.; Тугаринов, Василий Иванович; Vorotynov, A. M.; Воротынов, Александр Михайлович; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Romanenko, G. V.; Shvedenkov, Y. G.
}
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20.

Sublayer-enhanced growth of highly ordered Mn5Ge3 thin film on Si(111) / I. Yakovlev, I. Tarasov, A. Lukyanenko [et al.] // Nanomaterials. - 2022. - Vol. 12, Is. 24. - Ст. 4365, DOI 10.3390/nano12244365. - Cited References: 23. - The research was funded by Russian Science Foundation, project No. 21-12-00226. The RBS experiment was conducted in REC «Functional Nanomaterials», Immanuel Kant Baltic Federal University under the financial support from the Ministry of Science and Higher Education of the Russian Federation (project FZWN-2020-0008) . - ISSN 2079-4991
Кл.слова (ненормированные):
manganese germanide -- thin film -- MBE -- ferromagnetism -- sublayer
Аннотация: Mn5Ge3 epitaxial thin films previously grown mainly on Ge substrate have been synthesized on Si(111) using the co-deposition of Mn and Ge at a temperature of 390 °C. RMS roughness decreases by almost a factor of two in the transition from a completely polycrystalline to a highly ordered growth mode. This mode has been stabilized by changing the ratio of the Mn and Ge evaporation rate from the stoichiometric in the buffer layer. Highly ordered Mn5Ge3 film has two azimuthal crystallite orientations, namely Mn5Ge3 (001) [1-10] and Mn5Ge3 (001) [010] matching Si(111)[-110]. Lattice parameters derived a (7.112(1) Å) and c (5.027(1) Å) are close to the bulk values. Considering all structural data, we proposed a double buffer layer model suggesting that all layers have identical crystal structure with P6₃/mcm symmetry similar to Mn5Ge3, but orientation and level of Si concentration are different, which eliminates 8% lattice mismatch between Si and Mn5Ge3 film. Mn5Ge3 film on Si(111) demonstrates no difference in magnetic properties compared to other reported films. TC is about 300 K, which implies no significant excess of Mn or Si doping. It means that the buffer layer not only serves as a platform for the growth of the relaxed Mn5Ge3 film, but is also a good diffusion barrier.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, 660041 Krasnoyarsk, Russia
Institute of Chemistry and Chemical Technology, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, 660036 Krasnoyarsk, Russia
REC «Functional Nanomaterials», Immanuel Kant Baltic Federal University, 236016 Kaliningrad, Russia

Доп.точки доступа:
Yakovlev, I. A.; Яковлев, Иван Александрович; Tarasov, I. A.; Тарасов, Иван Анатольевич; Lukyanenko, A. V.; Лукьяненко, Анна Витальевна; Rautskii, M. V.; Рауцкий, Михаил Владимирович; Solovyov, L.; Sukhachev, A. L.; Сухачев, Александр Леонидович; Volochaev, M. N.; Волочаев, Михаил Николаевич; Efimov, D.; Goikhman, A.; Bondarev, I. A.; Бондарев, Илья Александрович; Varnakov, S. N.; Варнаков, Сергей Николаевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Volkov, N. V.; Волков, Никита Валентинович; Tarasov, A. S.; Тарасов, Антон Сергеевич
}
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