LARGE COERCIVITY IN ANTIFERROMAGNETIC Mn2O3/Mn5O8 AND MnO/Mn NANOPARTICLES

被引：4
作者：
Si, P. Z. [1 ,2 ]
Zhang, Z. D. [1 ,3 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
[2] China Jiliang Univ, Dept Mat Sci & Engn, Hangzhou 310018, Peoples R China
[3] Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2009年 / 23卷 / 19期
基金：
中国国家自然科学基金; 浙江省自然科学基金;
关键词：
Manganese oxide; nanoparticles; magnetic properties; ANOMALOUS MAGNETIC-PROPERTIES; CR2O3; NANOPARTICLES; MN3O4; COO; NIO;
D O I：
10.1142/S0217979209052984
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Mn2O3/Mn5O8 and MnO/Mn nanoparticles were prepared by annealing manganese nanoparticles in air and hydrogen, respectively. The antiferromagnetic Mn2O3/Mn5O8 and MnO/Mn nanoparticles exhibit anomalous magnetic properties, such as large moments, and large coercivity of up to 169 kA/m and 105 kA/m, respectively. This ferromagnetic-like behavior is attributed to the finite size effect of antiferromagnetic nanoparticles and the presence of ferrimagnetic Mn3O4 phases.
引用
收藏
页码：3693 / 3699
页数：7
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