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Title: Synthesis and Characterization of Rare-earth-free Magnetic Manganese Bismuth Nanocrystals

Abstract

Earth abundant manganese bismuth (MnBi) has long been of interest due to its large magnetocrystalline anisotropy and high energy density for advanced permanent magnet applications. However, solution synthesis of MnBi phase is challenging due to the reduction potential mismatch between Mn and Bi elements. In this study, we show a versatile MnBi synthesis method involving the metal co-reduction followed by thermal annealing. The magnetically hard MnBi crystalline phase is then exchange coupled with magnetically soft cobalt coating. Our processing approach offers a promising strategy for manufacturing rare-earth-free magnetic nanocrystals.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1188897
Report Number(s):
PNNL-SA-109657
CJ0100000
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: RSC Advances, 5(8):5567-5570
Country of Publication:
United States
Language:
English
Subject:
magnetic; nanocrystals; rare earth free

Citation Formats

Shen, Jian Q., Cui, Huizhong, Huang, Xiaopeng, Gong, Maogang, Qin, Wei, Kirkeminde, Alec, Cui, Jun, and Ren, Shenqiang. Synthesis and Characterization of Rare-earth-free Magnetic Manganese Bismuth Nanocrystals. United States: N. p., 2015. Web. doi:10.1039/C4RA12440E.
Shen, Jian Q., Cui, Huizhong, Huang, Xiaopeng, Gong, Maogang, Qin, Wei, Kirkeminde, Alec, Cui, Jun, & Ren, Shenqiang. Synthesis and Characterization of Rare-earth-free Magnetic Manganese Bismuth Nanocrystals. United States. doi:10.1039/C4RA12440E.
Shen, Jian Q., Cui, Huizhong, Huang, Xiaopeng, Gong, Maogang, Qin, Wei, Kirkeminde, Alec, Cui, Jun, and Ren, Shenqiang. Thu . "Synthesis and Characterization of Rare-earth-free Magnetic Manganese Bismuth Nanocrystals". United States. doi:10.1039/C4RA12440E.
@article{osti_1188897,
title = {Synthesis and Characterization of Rare-earth-free Magnetic Manganese Bismuth Nanocrystals},
author = {Shen, Jian Q. and Cui, Huizhong and Huang, Xiaopeng and Gong, Maogang and Qin, Wei and Kirkeminde, Alec and Cui, Jun and Ren, Shenqiang},
abstractNote = {Earth abundant manganese bismuth (MnBi) has long been of interest due to its large magnetocrystalline anisotropy and high energy density for advanced permanent magnet applications. However, solution synthesis of MnBi phase is challenging due to the reduction potential mismatch between Mn and Bi elements. In this study, we show a versatile MnBi synthesis method involving the metal co-reduction followed by thermal annealing. The magnetically hard MnBi crystalline phase is then exchange coupled with magnetically soft cobalt coating. Our processing approach offers a promising strategy for manufacturing rare-earth-free magnetic nanocrystals.},
doi = {10.1039/C4RA12440E},
journal = {RSC Advances, 5(8):5567-5570},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2015},
month = {Thu Jan 01 00:00:00 EST 2015}
}