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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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A magnetometer of weak quasi-stationary and high-frequency fields on resonator microstrip transducers with thin magnetic fields / A. N. Babitskii [et al.] // Instrum. Exp. Tech. - 2016. - Vol. 59, Is. 3. - P. 425-432, DOI 10.1134/S0020441216030131. - Cited References: 23. - This study was performed within the framework of the State Job of the Ministry of Education and Science of the Russian Federation for the research at the Siberian Federal University in 2014 (project no. 3.528.2014K). . - ISSN 0020-4412

РУБ Engineering, Multidisciplinary + Instruments & Instrumentation
Рубрики:
Ferromagnetic-resonance
   Films
   Susceptibility
   Anisotropy
   Sensors
   Trends
Аннотация: A high-sensitivity magnetometer for simultaneous measurements of three components of a weak quasi-stationary or high-frequency magnetic-field vector was developed and investigated. Microstrip structures that are based on irregular resonators serve as the magnetometer transducers. An anisotropic thin-film magnetic structure is used as the sensing element. This structure consists of two thin magnetic films that are prepared by magnetron sputtering of a Ni75Fe25 permalloy target and separated by a silicon monoxide layer. It is demonstrated that the transducer exhibits the maximum sensitivity, when the easy magnetization axis of the film structure is orthogonal to the polarization direction of the pumping microwave magnetic field in the microstrip resonator and at an optimal value of a constant magnetic bias field and its optimal deflection from the pumping-field polarization direction which is parallel to it. The magnetometer is characterized by a wide dynamic range of measured magnetic fields, 10–10–10–4 Т, and a wide frequency range, 10–1–105 Hz. © 2016, Pleiades Publishing, Inc.

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Публикация на русском языке Магнитометр слабых квазистационарных и высокочастотных полей на резонансных микрополосковых преобразователях с тонкими магнитными пленками [Текст] / А. Н. Бабицкий [и др.] // Приборы и техн. эксперим. : Наука, 2016. - № 3. - С. 96-104

Держатели документа:
Kirensky Institite of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, str. 38, Krasnoyarsk, Russian Federation
Siberian Federal University, pr. Svobodnyi 79, Krasnoyarsk, Russian Federation
Reshetnev Siberian State Aerospace University, pr. Im. Gazety Krasnoyarskii rabochii 31, Krasnoyarsk, Russian Federation
OAO NPP Radiosvyaz’, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Babitskii, A. N.; Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович; Skomorokhov, G. V.; Скоморохов, Георгий Витальевич; Izotov, A. V.; Изотов, Андрей Викторович; Galeev, R. G.
}
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Advanced characterization of FeNi-based films for the development of magnetic field sensors with tailored functional parameters / S. V. Komogortsev, I. G. Vazhenina, S. A. Kleshnina [et al.] // Sensors. - 2022. - Vol. 22, Is. 9. - Ст. 3324, DOI 10.3390/s22093324. - Cited References: 35. - This research was funded by the Russian Science Foundation (RSF), project no. 22-29-00980, https://rscf.ru/en/project/22-29-00980/ (accessed on 20 March 2022) . - ISSN 1424-8220
Кл.слова (ненормированные):
magnetic field sensors -- thin films -- multilayered structures -- magnetic anisotropy -- anisotropy distribution -- ferromagnetic resonance -- magnetoimpedance -- high frequency applications
Аннотация: Magnetometry and ferromagnetic resonance are used to quantitatively study magnetic anisotropy with an easy axis both in the film plane and perpendicular to it. In the study of single-layer and multilayer permalloy films, it is demonstrated that these methods make it possible not only to investigate the average field of perpendicular and in-plane anisotropy, but also to characterize their inhomogeneity. It is shown that the quantitative data from direct integral and local measurements of magnetic anisotropy are consistent with the direct and indirect estimates based on processing of the magnetization curves. The possibility of estimating the perpendicular magnetic anisotropy constant from the width of stripe domains in a film in the transcritical state is demonstrated. The average in-plane magnetic anisotropy field of permalloy films prepared by magnetron sputtering onto a Corning glass is almost unchanged with the thickness of a single-layer film. The inhomogeneity of the perpendicular anisotropy field for a 500 nm film is greater than that for a 100 nm film, and for a multilayer film with a total permalloy thickness of 500 nm, it is greater than that for a homogeneous film of the same thickness.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Physics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Department of Magnetism of Solid State, Institute of Natural Sciences and Mathematics, Ural Federal University, Ekaterinburg, 620002, Russian Federation
Laboratory of Advanced Magnetic Materials, Institute of Metal Physics UD RAS, Ekaterinburg, 620108, Russian Federation

Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Vazhenina, I. G.; Важенина, Ирина Георгиевна; Kleshnina, S. A.; Клешнина, Софья Андреевна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Lepalovskij, V. N.; Pasynkova, A. A.; Svalov, A. V.
}
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Aksenov, S. V.
A Fano resonance in transport characteristics of 1D atomic spin structures / S. V. Aksenov // Book of abstracts of Advances Research Workshop "Meso–2012". - 2012. - P. 37

Доп.точки доступа:
Val'kov, V. V.; Вальков, Валерий Владимирович; Ulanov, E. A.; Уланов Е.А.; Аксенов, Сергей Владимирович; Институт теоретической физики им. Л. Д. Ландау РАН; Институт физики твердого тела РАН; "Mesoscopic and Strongly Correlated Electron Systems", conference (6 ; 2012 ; июнь ; 17-23 ; Черноголовка, Моск. обл.)
}
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    Aksenov, S. V.
    Collapse of the Fano resonance caused by the nonlocality of the majorana state / S. V. Aksenov, M. Y. Kagan // JETP Letters. - 2020. - Vol. 111, Is. 5. - P. 286-292, DOI 10.1134/S0021364020050057. - Cited References: 37. - The work was supported by the Presidium of the Russian Academy of Sciences (Program of Basic Research no. 32 "Nanostructures: Physics, Chemistry, Biology, and Fundamentals of Technologies"), by the Russian Foundation for Basic Research (project nos. 19-02-00348, 20-32-70059, and 20-02-00015), and by the Government of the Krasnoyarsk Territory together with the Krasnoyarsk Science Foundation (project no. 19-42-240011 "Coulomb Interactions in the Problem of Majorana Modes in Low-Dimensional Systems with Nontrivial Topology"). S.V. Aksenov acknowledges the support of the Council of the President of the Russian Federation for Support of Young Russian Scientists and Leading Scientific Schools, grant no. MK3722.2018.2. M.Yu. Kagan acknowledges the support of the National Research University Higher School of Economics (program of basic research). . - ISSN 0021-3640. - ISSN 1090-6487
Рубрики:
BOUND-STATES
   QUANTUM TRANSITIONS
   TRANSMISSION
   CONTINUUM
   CASCADE
Аннотация: Owing to the nonlocal character of the Majorana state, the corresponding excitations are of great interest. It is demonstrated that the direct consequence of such nonlocality is the collapse of the Fano resonance manifesting itself in the conductance of an asymmetric interference device, the arms of which are connected by a one-dimensional topological superconductor. In the framework of the spinless model, it is shown that the predicted effect is associated with an increase in the multiplicity of the degeneracy of the zero-energy state of the structure arising at the critical point of the Kitaev model. Such an increase leads to the formation of a bound state in the continuum.

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Публикация на русском языке Аксенов, Сергей Владимирович. Коллапс резонанса Фано вследствие нелокальности майорановского состояния [Текст] / С. В. Аксенов, М. Ю. Каган // Письма в ЖЭТФ. - 2020. - Т. 111 Вып. 5. - С. 321-327

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Fed Res Ctr KSC, Siberian Branch, Krasnoyarsk 660036, Russia.
Natl Res Univ Higher Sch Econom, Moscow 101000, Russia.
Russian Acad Sci, Kapitza Inst Phys Problems, Moscow 119334, Russia.

Доп.точки доступа:
Kagan, M. Yu.; Аксенов, Сергей Владимирович; Presidium of the Russian Academy of SciencesRussian Academy of Sciences [32]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-02-00348, 20-32-70059, 20-02-00015]; Krasnoyarsk Science Foundation [19-42-240011]; Government of the Krasnoyarsk Territory; Council of the President of the Russian Federation for Support of Young Russian Scientists and Leading Scientific SchoolsLeading Scientific Schools Program [MK3722.2018.2]; National Research University Higher School of Economics
}
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Aleksandrov, K. S.
Spectroscopic investigation of phase transitions in CsLiMoO//4 crystals. / K. S. Aleksandrov, Yu. N. Ivanov, A. D. Schafer // Ferroelectrics. - 1983. - Vol. 55, Is. 1. - P. 671-674 . - ISSN 0015-0193
Кл.слова (ненормированные):
CRYSTALS - Structure -- MAGNETIC RESONANCE -- SPECTROSCOPY, RAMAN -- CESIUM LITHIUM MOLYBDATE -- PHASE TRANSITIONS -- FERROELECTRIC MATERIALS
Аннотация: Raman and NMR spectra in cubic and two distorted phases of CsLiMoO//4 have been studied. Phase transitions in the crystal are shown to belong to order-disorder type.

Scopus

Доп.точки доступа:
Ivanov, Y. N.; Иванов, Юрий Николаевич; Schafer, A. D.; Александров, Кирилл Сергеевич; European Meeting on Ferroelectricity(5 ; 1983 ; Sept. ; 26-30 ; Malaga, Sp)
}
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Aleksandrova, I. P.
Investigation of the tricritical poinT in SbSI by the nuclear-quadrupole resonance technique / I. P. Aleksandrova, A. K. Moskalyov // Zhurnal Eksperim. Teor. Fiz. - 1980. - Vol. 79, Is. 4. - P. 1421-1429. - Cited References: 23 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary

WOS

Доп.точки доступа:
Moskalyov, A. K.; Москалев, Александр Константинович; Александрова, Инга Петровна
}
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Alekseyev, K. N.
Chaotic dynamics in nuclear-magnetic-resonance / K. N. Alekseyev, G. P. Berman, V. I. Tsifrinovich // Zhurnal Eksperimentalnoi Teor. Fiz. - 1990. - Vol. 97, Is. 4. - P. 1277-1287. - Cited References: 21 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary

WOS
Доп.точки доступа:
Berman, G. P.; Берман, Геннадий Петрович; Tsifrinovich, V. I.
}
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Allotropic modifications of cobalt upon chemical deposition / A. V. Chzhan, S. A. Podorozhnyak, V. K. Mal’tsev [et al.] // Phys. Solid State. - 2021. - Vol. 63, Is. 1. - P. 42-46, DOI 10.1134/S1063783421010054. - Cited References: 17. - This study was supported in part by the Russian Foundation for Basic Research, project no. 18-02-00161-a . - ISSN 1063-7834
Кл.слова (ненормированные):
Co–P thin magnetic films -- chemical deposition -- nuclear magnetic resonance -- allotropic modifications of Co
Аннотация: The effect of the solution acidity on the crystal structure of cobalt during its chemical deposition is reported. It has been shown using the structural and magnetic examination and nuclear magnetic resonance study that the change in the working solution acidity leads to deposition of cobalt with different allotropic modifications in the nearest environment: the hcp type in the small (up to ~8.5) pH region and the fcc type in the large (over ~8.5) pH region. The formation of these cobalt modifications is attributed to the size effects caused by a decrease in the particle size with increasing pH.

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Публикация на русском языке Аллотропные модификации кобальта при химическом осаждении [Текст] / А. В. Чжан, С. А. Подорожняк, В. К. Мальцев [и др.] // Физ. тверд. тела. - 2021. - Т. 63 Вып. 1. - С. 43-47

Держатели документа:
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Krasnoyarsk State Agrarian University, Krasnoyarsk, 660049, Russian Federation
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Chzhan, A. V.; Podorozhnyak, S. A.; Mal'tsev, V. K.; Мальцев, Вадим Константинович; Krayukhin, I. N.; Patrin, G. S.; Патрин, Геннадий Семёнович
}
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10.

An effective method of magnetic hyperthermia based on the ferromagnetic resonance phenomenon / S. V. Stolyar, O. A. Li, E. D. Nikolaeva [et al.] // Phys. Met. Metallogr. - 2023. - Vol. 124, Is. 2. - P. 174-180, DOI 10.1134/S0031918X22601834. - Cited References: 15. - This study was supported by grant no. 22-14-20020 from the Russian Science Foundation and the Krasnoyarsk Regional Fund for Support of Scientific and Technological Activities. The authors are grateful to the Krasnoyarsk Regional Center for Collective Use at Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, for providing their research facilities . - ISSN 0031-918X. - ISSN 1555-6190
Кл.слова (ненормированные):
ferromagnetic resonance -- cobalt ferrite -- nickel ferrite -- magnetic hyperthermia
Аннотация: Nickel and cobalt ferrite nanoparticles have been synthesized using the chemical precipitation method; the nanoparticle sizes were found to be 63 ± 22 and 26 ± 4 nm, respectively. The static hysteresis loops and Mossbauer spectra have been measured. It is shown that cobalt ferrite powders are magnetically harder than nickel ferrite powders. Ferromagnetic resonance (FMR) curves have been studied. It is found that the FMR absorption for cobalt ferrite is observed at room temperature and above. The time dependences of the nanoparticle warm-up under FMR conditions have been measured. The maximum temperature changes for nickel ferrite and cobalt ferrite particles are 8 and 11 K, respectively. Using the example of cobalt ferrite powder, the possibility of effectively heating of particles in the FMR mode in their own field without using a DC magnetic field source is shown. The observed effect can be used in magnetic hyperthermia.

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Публикация на русском языке Эффективный способ магнитной гипертермии, основанный на явлении ферромагнитного резонанса [Текст] / С. В. Столяр, О. А. Ли, Е. Д. Николаева [и др.] // Физ. металлов и металловед. - 2023. - Т. 124 № 2. - С. 182-189

Держатели документа:
Federal Research Center, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
Siberian Federal University, 660041, Krasnoyarsk, Russia
Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia

Доп.точки доступа:
Stolyar, S. V.; Li, O. A.; Nikolaeva, E. D.; Vorotynov, A. M.; Воротынов, Александр Михайлович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Knyazev, Yu. V.; Князев, Юрий Владимирович; Bayukov, O. A.; Баюков, Олег Артемьевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович; P’yankov, V. F.; Volochaev, M. N.; Волочаев, Михаил Николаевич
}
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11.

    Analysis of Ehrlich ascites carcinoma with electron paramagnetic resonance / N. V. Latyshev, O. V. Kryukova, V. F. Pyankov, S. V. Stolyar // IEEE Ural-Siberian conference on computational technologies in cognitive science, genomics and biomedicine (CSGB). - 2021. - Ст. 9496012. - P. 290-293DOI 10.1109/CSGB53040.2021.9496012. - Cited References: 10
   Перевод заглавия: Анализ асцитной карциномы Эрлиха с помощью электронного парамагнитного резонанса
Аннотация: The study was aimed to reveal the dependence of changes in the content of metal-containing proteins and freeradical forms in a suspension of the experimental tumor in different periods of tumor growth using electron paramagnetic resonance. The object of the study was Ehrlich's ascites carcinoma, an experimental undifferentiated tumor, which is used to study various aspects of tumor development under external influences. Ehrlich ascites carcinoma was inoculated into the peritoneal cavity of laboratory mice. We believe that the determination of the concentrations of metal-containing proteins and free-radical forms using this method may be an important prognostic parameter for assessing the state of the tumor. Changes in metabolism will inevitably affect the functionality of cells and, as a consequence, the dynamics of tumor growth. The results of the study showed that metalcontaining proteins belonging to ascites plasma, such as transferrin, ferritin and ceruloplasmin, do not undergo significant changes. The signal from molybdenum-containing proteins also does not change at the stages of experimental tumor growth under consideration. However, in the course of this experiment, it was possible to record a slight decrease in the intensity of the formation of denitrosyl iron complexes with the development of a tumor in the body.

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Держатели документа:
Kirensky Institute of Physics Sb Ras, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Latyshev, N. V.; Kryukova, O. V.; Pyankov, V. F.; Stolyar, S. V.; Столяр, Сергей Викторович; IEEE Ural-Siberian Conference on Computational Technologies in Cognitive Science, Genomics and Biomedicine(2021 ; May 26-28 ; Novosibirsk / Yekaterinburg); Урало-Сибирская конференция по вычислительным технологиям в когнитивной науке, геномике и биомедицине(2021 ; 26-28 мая ; Новосибирск / Екатеринбург); Институт цитологии и генетики СО РАН
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12.

Antiferromagnetic Resonance and Dielectric Properties of Rare-earth Ferroborates in the Submillimeter Frequency Range / A. M. Kuz'menko [et al.] // J. Exp. Theor. Phys. - 2011. - Vol. 113, Is. 1. - P. 113-120, DOI 10.1134/S106377611105013X. - Cited References: 27. - This work was supported by the Russian Foundation for Basic Research, project no. 10-02-00846. . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
GDFE3(BO3)(4)
SPECTROSCOPY
CRYSTAL
Кл.слова (ненормированные):
Antiferromagnetic resonance -- Basic parameters -- Effective anisotropy constant -- Ferroborates -- Ferroics -- Ferromagnetic orderings -- Frequency ranges -- Magnetic interactions -- Magnetoresonance -- Millimeter frequency range -- Rare earth ions -- Submillimeters -- Antiferromagnetic materials -- Crystallography -- Erbium -- Europium -- Ferromagnetic resonance -- Ion exchange -- Magnetic anisotropy -- Magnetic devices -- Magnetic structure -- Permittivity -- Resonance -- Antiferromagnetism
Аннотация: The magnetoresonance and dielectric properties of a number of crystals of a new family of multiferroics, namely, rare-earth ferroborates RFe(3)(BO(3))(4) (R = Y, Eu, Pr, Tb, Tb(0.25)Er(0.75)), are studied in the submillimeter frequency range (nu = 3-20 cm(-1)). Ferroborates with R = Y, Tb, and Eu exhibit permittivity jumps at temperatures of 375, 198, and 58 K, respectively, which are caused by the R32 -> P3(1)2(1) phase transition. Antiferromagnetic resonance (AFMR) modes in the subsystem of Fe(3+) ions are detected in the range of antiferromagnetic ordering (T < T(N) = 30-40 K) in all ferroborates that have either an easy-plane (Y, Eu) or easy-axis (Pr, Tb, Tb(0.25)Er(0.75)) magnetic structure. The AFMR frequencies are found to depend strongly on the magnetic anisotropy of a rare-earth ion and its exchange interaction with the Fe subsystem, which determine the type of magnetic structure and the sign and magnitude of an effective anisotropy constant. The basic parameters of the magnetic interactions in these ferroborates are found, and the magnetoelectric contribution to AFMR is analyzed.

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Держатели документа:
[Kuz'menko, A. M.
Mukhin, A. A.
Ivanov, V. Yu.
Lebedev, S. P.] Russian Acad Sci, Inst Gen Phys, Moscow 119991, Russia
[Kadomtseva, A. M.] Moscow MV Lomonosov State Univ, Moscow 119991, Russia
[Bezmaternykh, L. N.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
Institute of General Physics, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119991, Russian Federation
Moscow State University, Moscow, 119991, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Kuz'menko, A. M.; Mukhin, A. A.; Ivanov, V. Y.; Kadomtseva, A. M.; Lebedev, S. P.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич
}
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13.

Antiferromagnetic Resonance and Dielectric Properties of Rare-earth Ferroborates in the Submillimeter Frequency Range / A. M. Kuz'menko, A. A. Mukhin, V. Yu. Ivanov [et al.] // J. Exp. Theor. Phys. - 2011. - Vol. 113, Is. 1. - P113-120, DOI 10.1134/S106377611105013X. - Cited Reference Count: 27. - Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [10-02-00846], This work was supported by the Russian Foundation for Basic Research, project no. 10-02-00846. . - JUL. - ISSN 1063-7761. - ISSN 1090-6509
Рубрики:
Physics, Multidisciplinary
Аннотация: The magnetoresonance and dielectric properties of a number of crystals of a new family of multiferroics, namely, rare-earth ferroborates RFe3(BO3)(4) (R = Y, Eu, Pr, Tb, Tb0.25Er0.75), are studied in the submillimeter frequency range (nu = 3-20 cm(-1)). Ferroborates with R = Y, Tb, and Eu exhibit permittivity jumps at temperatures of 375, 198, and 58 K, respectively, which are caused by the R32 - P3(1)2(1) phase transition. Antiferromagnetic resonance (AFMR) modes in the subsystem of Fe3+ ions are detected in the range of antiferromagnetic ordering (T≺T-N=30-40K) in all ferroborates that have either an easy-plane (Y, Eu) or easy-axis (Pr, Tb, Tb0.25Er0.75) magnetic structure. The AFMR frequencies are found to depend strongly on the magnetic anisotropy of a rare-earth ion and its exchange interaction with the Fe subsystem, which determine the type of magnetic structure and the sign and magnitude of an effective anisotropy constant. The basic parameters of the magnetic interactions in these ferroborates are found, and the magnetoelectric contribution to AFMR is analyzed.

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Держатели документа:
Russian Acad Sci, Inst Gen Phys, Moscow 119991, Russia;
Moscow MV Lomonosov State Univ, Moscow 119991, Russia;
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Kuz'menko, A. M.; Mukhin, A. A.; Ivanov, V. Yu.; Kadomtseva, A. M.; Lebedev, S. P.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич
}
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14.

Antiferromagnetic resonance and magnetic anisotropy in PrxY1−xFe3(BO3)4 crystals in the region of the magnetic structure transformation “easy axis – easy plane” / A. I. Pankrats, S. M. Zharkov, G. M. Zeer, I. A. Gudim // J. Alloys Compd. - 2022. - Vol. 909. - Ст. 164821, DOI 10.1016/j.jallcom.2022.164821. - Cited References: 37. - The authors acknowledge the assistance of R. Mironov in some resonance measurements. The SEM and EDS 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 0925-8388
Кл.слова (ненормированные):
Magnetically ordered materials -- Rare earth alloys and compounds -- Spin dynamics -- Anisotropy -- Magnetic measurements -- Scanning electron microscopy, SEM
Аннотация: The spin dynamics, magnetic structures and magnetic anisotropy of single crystals PrxY1−xFe3(BO3)4 have been studied using antiferromagnetic resonance (AFMR) in a wide range of frequencies, magnetic fields, and temperatures. The frequency-field dependences of AFMR for the crystals with x = 0.25 and 0.45 are characteristic of antiferromagnets with the easy plane (EP) anisotropy. The crystals with x = 0.75 and 1.0 exhibit frequency-field dependences that are typical for antiferromagnets with the easy axis (EA) anisotropy. In these crystals, a significant decrease in the effective anisotropy fields of praseodymium upon the transition to the spin-flop state has been found. It is shown that this is the main reason for the large lability intervals, within which the regions of coexistence of the collinear and spin-flop states overlap. In the crystal with x = 0.67, the magnetic field applied along the trigonal axis of the crystal leads to the spin reorientation transition from the EA to the EP state. A magnetic phase diagram of the states on the plane "magnetic field - temperature" is built. In this crystal, the effective anisotropy field of praseodymium also decreases upon the transition to the field-induced EP state. Diamagnetic dilution of the praseodymium subsystem leads to the contribution of this subsystem to the total anisotropy field depending almost linearly on the praseodymium concentration.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok 50/38, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, 79 Svobodny st., Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Pankrats, A. I.; Панкрац, Анатолий Иванович; Zharkov, S. M.; Жарков, Сергей Михайлович; Zeer, G. M.; Gudim, I. A.; Гудим, Ирина Анатольевна
}
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15.

Antiferromagnetic resonance and magnetic anisotropy in single crystals of the YFe3(BO3)(4)-GdFe3(BO3)(4) system / A. I. Pankrats [et al.] // Phys. Solid State. - 2008. - Vol. 50, Is. 1. - P. 79-83, DOI 10.1134/S1063783408010150. - Cited References: 16 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
IRON BORATE GDFE3(BO3)(4)
ND3+
Аннотация: The antiferromagnetic resonance in single crystals of the YFe3(BO3)(4)-GdFe3(BO3)(4) system is studied in the frequency range 25-140 GHz and the temperature range 4.2-50.0 K. It is established that the YFe3(BO3)(4) crystal containing only the magnetic subsystem of Fe3+ ions is an antiferromagnet with an easy anisotropy plane. The temperature dependences of the gaps in the antiferromagnetic resonance spectra of GdFe3(BO3)(4) and YxGd1-xFe3(BO3)(4) are used to calculate the contributions of the Fe3+ and Gd3+ subsystems to the magnetic anisotropy of these crystals. The contributions are found to be close in magnitude and have opposite signs. This leads to a relatively weak uniaxial anisotropy field in the crystals under investigation. Since the exchange interaction between the Gd3+ and Fe3+ ions magnetizes the magnetic subsystem of gadolinium, both subsystems start to contribute simultaneously at the Neel temperature of the iron subsystem.

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Держатели документа:
[Pankrats, A. I.
Petrakovskii, G. A.
Bezmaternykh, L. N.
Temerov, V. L.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Pankrats, A. I.; Панкрац, Анатолий Иванович; Petrakovskii, G. A.; Петраковский, Герман Антонович; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Temerov, V. L.; Темеров, Владислав Леонидович
}
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16.

Antiferromagnetic resonance and magnetic investigations of rare-earth ferroborates [Text] / V. Tugarinov, A. Pankrats, S. Kondyan [et al.] // Moscow Int. Symp. on Magnet. (MISM-2011) : Book of abstracts. - 2011. - Ст. 24OR-O-10. - P. 623. - Библиогр.: 3. - Work is supported by RFBR grant 10-02-00765

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Доп.точки доступа:
Tugarinov, V. I.; Тугаринов, Василий Иванович; Pankrats, A. I.; Панкрац, Анатолий Иванович; Kondyan, S.; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Temerov, V. L.; Темеров, Владислав Леонидович; Moscow International Symposium on Magnetism(5 ; 2011 ; Aug. ; 21-25 ; Moscow)
}
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17.

Antiferromagnetic resonance and phase diagram of HoFe3(BO3)4 [Text] / A. Pankrats, G. Petrakovskii [et al.] // International Symposium "Spin waves - 2009" : Saint Petersburg, Russia, June 7-12, 2009 : Simposium program. Abstracts. - 2009. - P40

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Доп.точки доступа:
Pankrats, A.; Petrakovskii, G. A.; Tugarinov, V.; Temerov, V.; Российская академия наук; Физико-технический институт им. А.Ф. Иоффе РАН; "Spin Waves", International Symposium(2009 ; JUN ; Saint-Petersburg)
Свободных экз. нет}
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18.

Antiferromagnetic resonance and phase diagrams of gadolinium ferroborate GdFe3(BO3)(4) / A. I. Pankrats [et al.] // J. Exp. Theor. Phys. - 2004. - Vol. 99, Is. 4. - P. 766-775, DOI 10.1134/1.1826168. - Cited References: 16 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary

Кл.слова (ненормированные):
Anisotropy -- Antiferromagnetic materials -- Antiferromagnetism -- Phase diagrams -- Resonance -- Single crystals -- Antiferromagnetic resonance -- Antiferromagnets -- Crystal axis -- Transition fields -- Gadolinium compounds
Аннотация: Antiferromagnetic resonance in single crystals of rhombohedral gadolinium ferroborate GdFe3(BO3)(4) was studied. The frequency-field dependences of antiferromagnetic resonance over the frequency range 26-70 GHz and the temperature dependences of resonance parameters for magnetic fields oriented along the crystal axis and in the basal plane were determined. It was found that the iron subsystem, which can be treated as a two-sublattice antiferromagnet with anisotropy of the easy-plane type, experienced ordering at T = 38 K. At temperatures below 20 K, the gadolinium subsystem with the opposite anisotropy sign strongly influenced the anisotropic properties of the crystal. This resulted in a spontaneous spin-reorientation transition from the easy-plane to the easy-axis state at 10 K. Below 10 K, magnetic field-induced transitions between the states were observed. Experimental phase diagrams on the temperature-magnetic field plane were constructed for fields oriented along the crystal axis and in the basal plane. A simple model was used to calculate the critical transition fields. The results were in close agreement with the experimental values measured at T = 4.2 K for both field orientations. (C) 2004 MAIK "Nauka / Interperiodica".

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Держатели документа:
Russian Acad Sci, Siberian Div, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Pankrats, A. I.; Панкрац, Анатолий Иванович; Petrakovskii, G. A.; Петраковский, Герман Антонович; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Bayukov, O. A.; Баюков, Олег Артемьевич
}
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19.

Antiferromagnetic resonance in Bi2CuO4 / L. E. Svistov [et al.] // J. Exp. Theor. Phys. - 1998. - Vol. 86, Is. 6. - P. 1228-1233, DOI 10.1134/1.558595. - Cited References: 14 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
SINGLE-CRYSTAL
RANGE
Аннотация: Magnetic resonance of the low-frequency spin-wave branch in the Bi2CuO4 antiferromagnet with an easy-plane anisotropy has been studied. Angular, frequency, and temperature dependences of the position and width of the antiferromagnetic resonance (AFMR) line have been measured. Our measurements combined with earlier data [H. Ochta, K. Yoshida, T. Matsuya, T. Nanba, M. Motokawa, K. Yamada, Y. Endon, and S. Hosoya, J. Phys. Sec. Jpn. 61, 2921 (1992); E. W. Ong, G. H. Kwei, R. A. Robinson, B. L. Ramakrishna, and R. B. von Dreele, Phys. Rev. B 42, 4255 (1990)] have allowed us to determine anisotropy constants of this material and to account for the unusual character of its static susceptibility anisotropy. The AFMR line shifts to the high-field side and broadens in a temperature range of 10-15 K, and the cause of this has remained unclear. In the low-temperature range the line shows a hysteresis corresponding to a static field magnitude several times as large as the spin-flop field. The position and width of the AFMR line depend sensitively on the sample preparation technique. (C) 1998 American Institute of Physics.

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Держатели документа:
Russian Acad Sci, AV Shubnikov Crystallog Inst, Moscow 177333, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Dept, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Svistov, L. E.; Chubarenko, V. A.; Shapiro, A. Y.; Zalesskii, A. V.; Petrakovskii, G. A.; Петраковский, Герман Антонович
}
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20.

Antiferromagnetic resonance in crystalline PrFe3(BO3)4 / A. N. Bludov [et al.] // Low Temp. Phys. - 2018. - Vol. 44, Is. 2. - P. 139-143, DOI 10.1063/1.5020909. - Cited References: 18 . - ISSN 1063-777X. - ISSN 1090-6517

РУБ Physics, Applied

Аннотация: Experimental AFMR studies of crystalline PrFe3(BO3)4 over a wide frequency range of 10–143 GHz at a temperature of 4.2 K have been carried out. The high-frequency properties of praseodymium ferroborate are well described in terms of a model of a two-sublattice antiferromagnet with an “easy axis” anisotropy. An energy gap of 134.3 ± 0.5 GHz is determined and the magnitude of the effective magnetic anisotropy field is estimated to be 1.9 ± 0.1 kOe. An analysis indicates that the spin-orientational phase transition in this compound is a first order transition.

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Публикация на русском языке Антиферромагнитный резонанс в кристалле PrFe3(BO3)4 [Текст] / А. Н. Блудов [и др.] // Физ. низк. температур. - 2018. - Т. 44 Вып. 2. - С. 185-190

Держатели документа:
Natl Acad Sci Ukraine, BI Verkin Inst Low Temp Phys & Technol, Pr Nauki 47, UA-61103 Kharkov, Ukraine.
Russian Acad Sci, Siberian Branch, LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Bludov, A. N.; Pashchenko, V. A.; Kobets, M. I.; Bedarev, V. A.; Merenkov, D. N.; Gnatchenko, S. L.; Gudim, I. A.; Гудим, Ирина Анатольевна
}
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