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Structural and magnetic features of solid-phase transformations in Mn/Bi and Bi/Mn films / V. G. Myagkov [et al.] // JETP Letters. - 2016. - Vol. 103, Is. 4. - P. 254-259, DOI 10.1134/S0021364016040111. - Cited References: 47. - This work was supported by the Russian Foundation for Basic Research (project nos. 15-02-00948 and 16-03-00069), by the Council of the President of the Russian Federation for Support of Young Scientists and Leading Scientific Schools (project no. SP-317.2015.1), and by the Foundation for Promotion of the Development of Small Scientific and Engineering Enterprises (project nos. 0011727 and 6662GU2015, program Umnik). The electron microscopy studies were performed on the equipment of the Shared Usage Center, Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences. . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
High-temperature synthesis
   Epitaxial thin-films
   State synthesis
   Martensitic transformations
   Vacuum depositions
   MnBi filmsd
   Bi
   System
   Anisotropy
   Compound
Аннотация: Solid-phase transformations at different annealing temperatures in Mn/Bi (Mn on Bi) and Bi/Mn (Bi on Mn) films have been studied using X-ray diffraction, electron microscopy, and magnetic measurements. It has been shown that the synthesis of the α-MnBi phase in polycrystalline Mn/Bi films begins at a temperature of ~120°C and the Mn and Bi layers react completely at 300°C. The resulting α-MnBi(001) samples have a large perpendicular magnetic anisotropy (Ku ≃ 1.5 × 107 erg/cm3) and a coercive force H HC ~ 3 kOe. In contrast to Mn/Bi, the ferromagnetic α-MnBi phase in Bi/Mn films is not formed even at annealing processes up to 400°C and Mn clusters are formed in a Bi melt. This asymmetry in phase transformations occurs because chemosorbed oxygen existing on the surface of the Mn film in Bi/Mn films suppresses a solid-phase reaction between Mn and Bi. The analysis of the results obtained implies the existence of new low-temperature (~120°C) structural transformation in the Mn–Bi system. © 2016, Pleiades Publishing, Inc.

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Публикация на русском языке Структурные и магнитные особенности твердофазных превращений в Mn/Bi и Bi/Mn пленках [Текст] / В. Г. Мягков [и др.] // Письма в ЖЭТФ : Наука, 2016. - Т. 103 Вып. 4. - С. 280-285

Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, pr. Gazety Krasnoyarskii Rabochii, Krasnoyarsk, Russian Federation
Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Myagkov, V. G.; Мягков, Виктор Григорьевич; Bykova, L. E.; Быкова, Людмила Евгеньевна; Yakovchuk, V. Yu.; Яковчук, Виктор Юрьевич; Zhigalov, V. S.; Жигалов, Виктор Степанович; Volochaev, M. N.; Волочаев, Михаил Николаевич; Matsynin, A. A.; Мацынин, Алексей Александрович; Tambasov, I. A.; Тамбасов, Игорь Анатольевич; Seredkin, V. A.; Середкин, Виталий Александрович; Patrin, G. S.; Патрин, Геннадий Семёнович; Bondarenko, G. N.; Бондаренко, Галина Николаевна
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