热门
Synthesis and magnetic properties of antiferromagnetic Co3O4 nanoparticles
文献类型：期刊论文
| 作者 | H. T. Zhu ; J. Luo ; J. K. Liang ; G. H. Rao ; J. B. Li ; J. Y. Zhang ; Z. M. Du |
| 刊名 | Physica B-Condensed Matter
 |
| 出版日期 | 2008 |
| 卷号 | 403期号:18页码:3141-3145 |
| 关键词 | nanoparticles antiferromagnetism finite size effects curie-temperature cobalt-hydroxide decomposition superlattices anisotropy particles |
| ISSN号 | 0921-4526 |
| 中文摘要 | Anti ferromagnetic Co3O4 nanoparticles with diameter around 30nm have been synthesized by a solution-based method. The phase identification by the wide-angle X-ray powder diffraction indicates that the CO3O4 nanoparticle has a cubic spinel structure with a lattice constant of 0.80843(2) nm. The image of field emission scanning electron microscope shows that the nanoparticles are assembled together to form nanorods. The magnetic properties of Co3O4 fine particles have been measured by a superconducting quantum interference device magnetometer. A deviation of the Neel temperature from the bulk is observed, which can be well described by the theory of finite-size scaling. An enhanced coercivity as well as a loop shift are observed in the field-cooled hysteresis loop. The exchange bias field decreases with increasing temperature and diminishes at the Neel temperature. The training effect and the opening of the loop reveal the existence of the spin-glass-like surface spins. (C) 2008 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/33404]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | H. T. Zhu,J. Luo,J. K. Liang,et al. Synthesis and magnetic properties of antiferromagnetic Co3O4 nanoparticles[J]. Physica B-Condensed Matter,2008,403(18):3141-3145. |
| APA | H. T. Zhu.,J. Luo.,J. K. Liang.,G. H. Rao.,J. B. Li.,...&Z. M. Du.(2008).Synthesis and magnetic properties of antiferromagnetic Co3O4 nanoparticles.Physica B-Condensed Matter,403(18),3141-3145. |
| MLA | H. T. Zhu,et al."Synthesis and magnetic properties of antiferromagnetic Co3O4 nanoparticles".Physica B-Condensed Matter 403.18(2008):3141-3145. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。