Magnetic properties of single-phase MnBi grown from MnBi{sub 49} melt

Journal Article · Wed May 07 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4868204· OSTI ID:22273753

Xiao, X. F.; Feng, H.; Yu, S. J.; Ge, H. L. ^[1]; Ye, Q. L. ^[2]; Liu, J. J. ^[3]

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1. Zhejiang Key Laboratory of Magnetic Materials, China Jiliang University, Hangzhou 310018 (China)
2. Department of Physics, Hangzhou Normal University, Hangzhou 310036 (China)
3. Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211 (China)

The single-phase NiAs-type MnBi, embedded in Bi matrix, was grown from homogeneous MnBi{sub 49} melt at low temperatures to prevent the formation of Mn{sub 1.08}Bi. An abrupt magnetization change was observed at ∼240 K. The origin of this change was ascribed to the movement of the Mn atoms between the regular sites and the interstitial sites in the MnBi lattices. The splitting of the x-ray photoelectron lines of MnBi indicates the presence of two binding states of Mn atoms, one of which was ascribed to interstitial Mn atoms. A large coercivity up to 1.79 T at 400 K was observed in the as-grown bulk isotropic MnBi alloys.

• OSTI ID: 22273753
• Journal Information: Journal of Applied Physics, Vol. 115, Issue 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
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INTERSTITIALS
MAGNETIC PROPERTIES
MAGNETIZATION
MANGANESE
MATRIX MATERIALS
TEMPERATURE DEPENDENCE