Direct imaging of cross-sectional magnetization reversal in an exchange-biased CoFeB/IrMn bilayer
文献类型：期刊论文
| 作者 | Pei, Ke; Hu, Shuai; Wang, Baomin; Xia, Weixing; Yang, Huali; Zhan, Qingfeng; Li, Run-Wei; Liu, Xincai; Li, Xiaoguang |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2018 |
| 卷号 | 97期号:5 |
| 关键词 | Electron Holography Anisotropy Microscopy Films |
| 英文摘要 | The exchange coupling between ferromagnetic (FM) and antiferromagnetic materials has been intensely studied for fundamental physics and technological applications in various devices. However, the experimental reported magnitudes of exchange coupling are often smaller than that predicted theoretically, and for which the formation of springlike spin structure in the FM layer has been suggested as the cause. However, investigating the spin structure around the interface of exchange-coupled systems is challenging. Herewe report the direct imaging of the cross-sectionalmagnetization reversal and spin structure at the interface of a model exchange-biased CoFeB/IrMn bilayer by a Lorentz transmission electron microscope with electron holography techniques. Through imaging of in situ magnetization reversal and spin structure at the remanent state, the springlike spin structure (either Bloch-wall-like or Neel-wall-like) in the CoFeB layer has been deduced within subnanometer region of the interface. This result puts a strong constraint on the theories of exchange coupling in inhomogeneous magnetic systems. |
| 学科主题 | Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/16803]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Pei, Ke,Hu, Shuai,Wang, Baomin,et al. Direct imaging of cross-sectional magnetization reversal in an exchange-biased CoFeB/IrMn bilayer[J]. PHYSICAL REVIEW B,2018,97(5). |
| APA | Pei, Ke.,Hu, Shuai.,Wang, Baomin.,Xia, Weixing.,Yang, Huali.,...&Li, Xiaoguang.(2018).Direct imaging of cross-sectional magnetization reversal in an exchange-biased CoFeB/IrMn bilayer.PHYSICAL REVIEW B,97(5). |
| MLA | Pei, Ke,et al."Direct imaging of cross-sectional magnetization reversal in an exchange-biased CoFeB/IrMn bilayer".PHYSICAL REVIEW B 97.5(2018). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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。