Development of MnBi permanent magnet: neutron diffraction of MnBi powder

Journal Article · Wed Mar 05 00:00:00 EST 2014 · Journal of Applied Physics, 115(17):Article No. 17A743

DOI:https://doi.org/10.1063/1.4867230· OSTI ID:1133985

Cui, Jun; Choi, Jung-Pyung; Li, Guosheng; Polikarpov, Evgueni; Darsell, Jens T.; Kramer, Matthew J.; Zarkevich, Nikolai; Wang, L. L.; Johnson, D. D.; Marinescu, Melania; Huang, Qingzhen; Wu, Hui; Vuong, Nguyen V.; Liu, J. Ping

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 power. The result shows that the purity of the obtained powder is about 91wt.% at 300K, and the magnetic moment of the Mn atom in MnBi lattice is 4.424 and 4.013 μB at 50 K and 300 K respectively.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1133985
• Report Number(s): PNNL-SA-98434; CJ0100000
• Journal Information: Journal of Applied Physics, 115(17):Article No. 17A743, Journal Name: Journal of Applied Physics, 115(17):Article No. 17A743
• Country of Publication: United States
• Language: English

Related Subjects

MnBi
permanent magnet
neutron diffraction
magnetic structure