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Pis'ma v Zh. Èksper. Teoret. Fiz., 2016, Volume 103, Issue 4, Pages 280–285 (Mi jetpl4870)  

This article is cited in 4 scientific papers (total in 4 papers)

CONDENSED MATTER

Structural and magnetic features of solid-phase transformations in Mn/Bi and Bi/Mn films

V. G. Myagkova, L. E. Bykovaa, V. Yu. Yakovchuka, V. S. Zhigalovba, M. N. Volochaevba, A. A. Matsynina, I. A. Tambasova, V. A. Seredkina, G. S. Patrinac, G. N. Bondarenkod

a Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia
b Siberian State Aerospace University, pr. Gazety Krasnoyarskii Rabochii, Krasnoyarsk, 660014, Russia
c Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russia
d Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, 660041, Russia

Abstract: 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 $\alpha$-MnBi phase in polycrystalline Mn/Bi films begins at a temperature of $\sim$120$^\circ$C and the Mn and Bi layers react completely at 300$^\circ$C. The resulting $\alpha$-MnBi(001) samples have a large perpendicular magnetic anisotropy ($K_u\simeq1.5\times10^7$ erg/cm$^3$) and a coercive force $H>H_C\sim3$ kOe. In contrast to Mn/Bi, the ferromagnetic $\alpha$-MnBi phase in Bi/Mn films is not formed even at annealing processes up to 400$^\circ$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 ($\sim$120$^\circ$C) structural transformation in the Mn-Bi system.

Funding Agency Grant Number
Russian Foundation for Basic Research 15-02-00948_
16-03-00069_
RF President scholarship -317.2015.1
Foundation for Assistance to Small Innovative Enterprises in Science and Technology 0011727, 66622015


DOI: https://doi.org/10.7868/S0370274X16040081

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English version:
Journal of Experimental and Theoretical Physics Letters, 2016, 103:4, 254–259

Bibliographic databases:

Document Type: Article
Received: 28.12.2015

Citation: V. G. Myagkov, L. E. Bykova, V. Yu. Yakovchuk, V. S. Zhigalov, M. N. Volochaev, A. A. Matsynin, I. A. Tambasov, V. A. Seredkin, G. S. Patrin, G. N. Bondarenko, “Structural and magnetic features of solid-phase transformations in Mn/Bi and Bi/Mn films”, Pis'ma v Zh. Èksper. Teoret. Fiz., 103:4 (2016), 280–285; JETP Letters, 103:4 (2016), 254–259

Citation in format AMSBIB
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\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
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    Citing articles on Google Scholar: Russian citations, English citations
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    This publication is cited in the following articles:
    1. G. S. Patrin, V. O. Vasil'kovskii, D. A. Velikanov, A. V. Svalov, “Influence of magnetic field on the interlayer interaction in (Co/Si/Gd/Si)$_n$ films”, JETP Letters, 75:3 (2002), 159–161  mathnet  crossref  adsnasa  isi  scopus
    2. V. G. Myagkov, L. E. Bykova, V. Yu. Yakovchuk, A. A. Matsynin, D. A. Velikanov, G. S. Patrin, G. Yu. Yurkin, G. N. Bondarenko, “High rotatable magnetic anisotropy in MnBi thin films”, JETP Letters, 105:10 (2017), 651–656  mathnet  crossref  crossref  isi  elib
    3. E. Cespedes, M. Villanueva, C. Navio, F. J. Mompean, M. Garcia-Hernandez, A. Inchausti, P. Pedraz, M. R. Osorio, J. Camarero, A. Bollero, “High coercive LTP-MnBi for high temperature applications: From isolated particles to film-like structures”, J. Alloy. Compd., 729 (2017), 1156–1164  crossref  isi  scopus
    4. Patel K. Zhang J. Ren Sh., “Rare-Earth-Free High Energy Product Manganese-Based Magnetic Materials”, Nanoscale, 10:25 (2018), 11701–11718  crossref  isi  scopus
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