Spin canting and spin-flop transition in antiferromagnetic Cr(2)O(3) nanocrystals
文献类型：期刊论文
| 作者 | D. Li ; Z. Han ; J. G. Zheng ; X. L. Wang ; D. Y. Geng ; J. Li ; Z. D. Zhang |
| 刊名 | Journal of Applied Physics
 |
| 出版日期 | 2009 |
| 卷号 | 106期号:5 |
| 关键词 | antiferromagnetic materials chromium chromium compounds magnetic annealing magnetic structure magnetic transitions magnetisation nanostructured materials Neel temperature magnetic-properties nio nanoparticles fine particles ferritin systems |
| ISSN号 | 0021-8979 |
| 中文摘要 | The structure and magnetic properties of Cr(2)O(3) and Cr nanoparticles have been investigated. The as-prepared Cr nanoparticles show a core/shell structure, consisting of a Cr core and a thin Cr oxide shell with a thickness of 1.5-2.5 nm. Annealing the Cr nanoparticles in air leads to the formation of Cr(2)O(3) nanoparticles with spherical morphology. The temperature dependence of the magnetization indicates that these Cr(2)O(3) nanocrystals are antiferromagnetic below their Neacuteel temperature of 320 K and undergo an antiferromagnetic to weak-ferromagnetic transition below about 140 K due to spin canting at disordered surfaces. Below 100 K, a spin-flop transition is induced by an external field with a critical field lower than about 7 T. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32015]  |
| 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 | D. Li,Z. Han,J. G. Zheng,et al. Spin canting and spin-flop transition in antiferromagnetic Cr(2)O(3) nanocrystals[J]. Journal of Applied Physics,2009,106(5). |
| APA | D. Li.,Z. Han.,J. G. Zheng.,X. L. Wang.,D. Y. Geng.,...&Z. D. Zhang.(2009).Spin canting and spin-flop transition in antiferromagnetic Cr(2)O(3) nanocrystals.Journal of Applied Physics,106(5). |
| MLA | D. Li,et al."Spin canting and spin-flop transition in antiferromagnetic Cr(2)O(3) nanocrystals".Journal of Applied Physics 106.5(2009). |
入库方式： OAI收割
来源：金属研究所
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