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Title: Development of MnBi permanent magnet: Neutron diffraction of MnBi powder

MnBi attracts great attention in recent years for its great potential as permanent magnet materials. MnBi phase is difficult to obtain because of the rather drastic peritectic reaction between Mn and Bi. In this paper, we report our effort on synthesizing high purity MnBi compound using conventional powder metallurgical approaches. Neutron diffraction was carried out to investigate the crystal and nuclear structure of the obtained powder. The result shows that the purity of the obtained powder is about 91 wt. % at 300 K, and the magnetic moment of the Mn atom in MnBi lattice is 4.424 and 4.013 μ{sub B} at 50 K and 300 K, respectively.
Authors:
; ; ; ;  [1] ; ; ; ;  [2] ;  [3] ; ;  [4] ; ;  [5]
  1. Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354 (United States)
  2. Materials Sciences and Engineering Division, Ames Laboratory, Ames, Iowa 50011 (United States)
  3. Electron Energy Corporation, Landisville, Pennsylvania 17538 (United States)
  4. NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6102 (United States)
  5. Department of Physics, University of Texas at Arlington, Arlington, Texas 76019 (United States)
Publication Date:
OSTI Identifier:
22273961
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BISMUTH; CRYSTAL LATTICES; CRYSTALS; INTERMETALLIC COMPOUNDS; MAGNETIC MATERIALS; MAGNETIC MOMENTS; MANGANESE; NEUTRON DIFFRACTION; PERMANENT MAGNETS; POWDERS; TEMPERATURE DEPENDENCE