STRUCTURE AND MAGNETIC PROPERTIES OF MANGANESE OXIDE NANOPARTICLES PREPARED BY ARC SUBLIMATION
STRUCTURE AND MAGNETIC PROPERTIES OF MANGANESE OXIDE NANOPARTICLES PREPARED BY ARC SUBLIMATION
复制标题
电弧升华法制备氧化锰纳米粒子的结构和磁性能
DOI:
10.1142/s0217984910025358
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发表时间:
2010-12
影响因子:
1.9
通讯作者:
Choi, C. J.
中科院分区:
文献类型:
--
作者:
Sohnel, T.;Wang, H. X.;Jiang, W.;Si, P. Z.;Lee, J. G.;Choi, C. J.
Manganese oxide nanoparticles with narrow size distribution were prepared in large scale by arc sublimation of bulk MnO. Although MnO is antiferromagnetic, the as-prepared manganese oxide nanoparticles exhibit ferromagnetic behaviors with coercivity and exchange bias up to 417,065 A/m and 162,099 A/m at 5 K, respectively. We attribute these anomalous magnetic properties to the presence of ferrimagnetic Mn3O4, uncompensated surface spins and their coupling to the antiferromagnetic MnO.
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