| 题名 | Direct observation of high spin polarization in Co2FeAl thin films |
| 作者 | |
| 通讯作者 | He, Liang; Xu, Yongbing |
| 发表日期 | 2018-05-23
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| DOI | |
| 发表期刊 | |
| ISSN | 2045-2322
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| 卷号 | 8 |
| 摘要 | We have studied the Co2FeAl thin films with different thicknesses epitaxially grown on GaAs (001) by molecular beam epitaxy. The magnetic properties and spin polarization of the films were investigated by in-situ magneto-optic Kerr effect (MOKE) measurement and spin-resolved angle-resolved photoemission spectroscopy (spin-ARPES) at 300 K, respectively. High spin polarization of 58% (+/- 7%) was observed for the film with thickness of 21 unit cells (uc), for the first time. However, when the thickness decreases to 2.5 uc, the spin polarization falls to 29% (+/- 2%) only. This change is also accompanied by a magnetic transition at 4 uc characterized by the MOKE intensity. Above it, the film's magnetization reaches the bulk value of 1000 emu/cm(3). Our findings set a lower limit on the thickness of Co2FeAl films, which possesses both high spin polarization and large magnetization. |
| 相关链接 | [来源记录] |
| 收录类别 | |
| 语种 | 英语
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| 学校署名 | 其他
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| 资助项目 | Natural Science Foundation of Jiangsu Province of China[BK20140054]
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| WOS研究方向 | Science & Technology - Other Topics
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| WOS类目 | Multidisciplinary Sciences
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| WOS记录号 | WOS:000432789300052
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| 出版者 | |
| 来源库 | Web of Science
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| 引用统计 |
被引频次[WOS]：24
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| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/27702 |
| 专题 | 理学院_物理系 |
| 作者单位 | 1.Nanjing Univ, Sch Elect Sci & Engn, Collaborat Innovat Ctr Adv Microstruct, Jiangsu Prov Key Lab Adv Photon & Elect Mat, Nanjing 210093, Jiangsu, Peoples R China 2.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Guangdong, Peoples R China 3.Univ Missouri, Dept Phys & Astron, Columbia, MO 65211 USA 4.Univ York, Dept Elect, York Nanjing Joint Ctr YNJC Spintron & Nano Engn, York YO10 3DD, N Yorkshire, England 5.Nanjing Univ, Coll Engn & Appl Sci, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China 6.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 |
Zhang, Xiaoqian,Xu, Huanfeng,Lai, Bolin,et al. Direct observation of high spin polarization in Co2FeAl thin films[J]. Scientific Reports,2018,8.
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| APA |
Zhang, Xiaoqian.,Xu, Huanfeng.,Lai, Bolin.,Lu, Qiangsheng.,Lu, Xianyang.,...&Xu, Yongbing.(2018).Direct observation of high spin polarization in Co2FeAl thin films.Scientific Reports,8.
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| MLA |
Zhang, Xiaoqian,et al."Direct observation of high spin polarization in Co2FeAl thin films".Scientific Reports 8(2018).
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| 条目包含的文件 | 条目无相关文件。 | |||||
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