Ferromagnetic-like behavior of ultrafine NiO nanocrystallites

被引：125

作者：

Bi, H

Li, SD

Zhang, YC

Du, YW

机构：

[1] Anhui Univ, Sch Chem & Chem Engn, Hefei 230039, Peoples R China

[2] Nanjing Univ, Natl Key Lab Solid State Microstruct, Dept Phys, Nanjing 210093, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 277卷 / 03期

基金：

美国国家科学基金会;

关键词：

nanoscale materials; lattice distortion; antiferromagnetics;

D O I：

10.1016/j.jmmm.2003.11.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ultrafine NiO nanocrystallites (NCs) with grain size of 5 nm have been synthesized by vacuum thermolysis method. These NCs exhibit a ferromagnetic-like behavior, and a large coercivity of 327.14 kA/m exists together with a large exchange bias field of 148.48 kA/m at 4.2 K. A large net magnetization of 205.72 mu(B) per particle is evaluated for the 5 nit NCs. The ferromagnetic-like magnetic properties are attributed to the combined effects of missing bonds and the lattice distortion. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：363 / 367

页数：5

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