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...

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Veröffentlicht in:Journal of applied physics 2014-05, Vol.115 (17)
Hauptverfasser: Cui, J, Choi, JP, Li, G, Polikarpov, E, Darsell, J, Kramer, MJ, Zarkevich, NA, Wang, LL, Johnson, DD, Marinescu, M, Huang, QZ, Wu, H, Vuong, NV, Liu, JP
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container_issue 17
container_start_page
container_title Journal of applied physics
container_volume 115
creator Cui, J
Choi, JP
Li, G
Polikarpov, E
Darsell, J
Kramer, MJ
Zarkevich, NA
Wang, LL
Johnson, DD
Marinescu, M
Huang, QZ
Wu, H
Vuong, NV
Liu, JP
description 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 mu(B) at 50 K and 300 K, respectively. (C) 2014 AIP Publishing LLC.
doi_str_mv 10.1063/1.4867230
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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 mu(B) at 50 K and 300 K, respectively. 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title Development of MnBi permanent magnet: Neutron diffraction of MnBi powder
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