Unified nonequilibrium dynamical theory for exchange bias and training effects | |
Zhang, KC ; Liu, BG | |
刊名 | CHINESE PHYSICS B |
2009 | |
卷号 | 18期号:9页码:3960 |
关键词 | DILUTED ANTIFERROMAGNETS FILMS BILAYERS FIELD |
ISSN号 | 1674-1056 |
通讯作者 | Zhang, KC (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China. |
中文摘要 | We have investigated the exchange bias and training effect in the ferromagnetic/antiferromagnetic (FM/AF) heterostructures using a unified Monte Carlo dynamical approach. The magnetization of the uncompensated AF layer is still open after the first field cycling is finished. Our simulated results show obvious shift of hysteresis loops (exchange bias) and cycling dependence of exchange bias (training effect) when the temperature is below 45 K. The exchange bias field decreases with decreasing cooling rate or increasing temperature and the number of the field cycling. Essentially, these two effects can be explained on the basis of the microscopical coexistence of both reversible and irreversible moment reversals of the AF domains. Our simulations are useful to understand the real magnetization dynamics of such magnetic heterostructures. |
收录类别 | SCI |
资助信息 | National Natural Science Foundation of China [10874232, 10774180, 60621091]; Chinese Academy of Sciences [KJCX2.YW.W09-5]; Ministry of Science and Technology, Chin [2005CB623602] |
语种 | 英语 |
公开日期 | 2013-09-23 |
内容类型 | 期刊论文 |
源URL | [http://ir.iphy.ac.cn/handle/311004/46414] |
专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
推荐引用方式 GB/T 7714 | Zhang, KC,Liu, BG. Unified nonequilibrium dynamical theory for exchange bias and training effects[J]. CHINESE PHYSICS B,2009,18(9):3960. |
APA | Zhang, KC,&Liu, BG.(2009).Unified nonequilibrium dynamical theory for exchange bias and training effects.CHINESE PHYSICS B,18(9),3960. |
MLA | Zhang, KC,et al."Unified nonequilibrium dynamical theory for exchange bias and training effects".CHINESE PHYSICS B 18.9(2009):3960. |
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