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The structural and magnetic properties of MnBi and exchange coupled MnBi/Fe films
B. Li; W. Liu; X. G. Zhao; W. J. Gong; X. T. Zhao; H. L. Wang; D. Kim; C. J. Choi; Z. D. Zhang
2014
Source PublicationJournal of Magnetism and Magnetic Materials
ISSN0304-8853
Volume372Pages:12-15
AbstractThe structural and magnetic properties of MnBi and MnBi/Fe films prepared by magnetron sputtering and in situ vacuum annealing are investigated. MnBi film is highly c-axis textured with perpendicular anisotropy. The out-of-plane coercivity increases with temperature, which reaches to 15 kOe and 21 kOe at 300 K and 400 K, respectively. For exchange coupled MnBi/Fe films, when the thickness of Fe layer is thin, the hysteresis loops show single-phase-like reversal behavior due to the effective interfacial exchange coupling. In comparison with MnBi film, the remanent magnetization enhances. The maximum energy product also improves from 7.6 MGOe to 8.0 MGOe at 300 K, and from 5.7 MGOe to 6.1 MGOe at 400 K. As the thickness of Fe layer exceeds the critical dimension, the two-step reversal behavior is observed, indicating the decoupling of soft Fe layer and neighboring hard MnBi layer. (C) 2014 Elsevier B.V. All rights reserved.
description.department[li, b. ; liu, w. ; zhao, x. g. ; gong, w. j. ; zhao, x. t. ; wang, h. l. ; zhang, z. d.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [kim, d. ; choi, c. j.] korea inst mat sci, funct mat div, chang won 631831, south korea. ; liu, w (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. ; wliu@imr.ac.cn
KeywordMagnetic Film And Multilayer Anisotropy Magnetic Measurement Intermetallic Compound Electronic-structure Energy Product Phase Transformation
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73260
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
B. Li,W. Liu,X. G. Zhao,et al. The structural and magnetic properties of MnBi and exchange coupled MnBi/Fe films[J]. Journal of Magnetism and Magnetic Materials,2014,372:12-15.
APA B. Li.,W. Liu.,X. G. Zhao.,W. J. Gong.,X. T. Zhao.,...&Z. D. Zhang.(2014).The structural and magnetic properties of MnBi and exchange coupled MnBi/Fe films.Journal of Magnetism and Magnetic Materials,372,12-15.
MLA B. Li,et al."The structural and magnetic properties of MnBi and exchange coupled MnBi/Fe films".Journal of Magnetism and Magnetic Materials 372(2014):12-15.
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