Highly-dispersive spin gapless semiconductors in rare-earth-element contained quaternary heusler compounds
文献类型：期刊论文
| 作者 | Xu,Guizhou1; You,Yurong1; Gong,Yuanyuan1; Liu,Er1; Xu,Feng1; Wang,Wenhong2 |
| 刊名 | Journal of physics d: applied physics
 |
| 出版日期 | 2017-02-09 |
| 卷号 | 50期号:10 |
| 关键词 | Spin gapless semiconductor Quaternary heusler High mobility |
| ISSN号 | 0022-3727 |
| DOI | 10.1088/1361-6463/aa57a3 |
| 英文摘要 | Abstract the acquisition of high mobility electrons in the zero-gap band of spin gapless semiconductors is crucial for their practical applications in spintronic devices. in this work, we propose to design a higher dispersive band by importing the rare-earth atom into the heusler compounds. with first principles calculations, we identify several new spin gapless semiconductor candidates in the 21-electron limgpdsn-type quaternary heusler alloys of (y, la, lu)cocr/femn(al, ga). densities of states for most of them reveal large band gaps in the minority spin direction, and relatively low states near the fermi level in the majority spin. according to the electron projected band analysis, we find the import of the rare earth atom can enhance the sp component in the band across the fermi level, which is conducive to form a linear-dispersive band that is promising to enhance the carrier mobility of spin gapless semiconductors. |
| 语种 | 英语 |
| WOS记录号 | IOP:0022-3727-50-10-AA57A3 |
| 出版者 | IOP Publishing |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2373508 |
| 专题 | 物理研究所 |
| 作者单位 | 1.School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of China 2.State Key Laboratory for Magnetism, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Xu,Guizhou,You,Yurong,Gong,Yuanyuan,et al. Highly-dispersive spin gapless semiconductors in rare-earth-element contained quaternary heusler compounds[J]. Journal of physics d: applied physics,2017,50(10). |
| APA | Xu,Guizhou,You,Yurong,Gong,Yuanyuan,Liu,Er,Xu,Feng,&Wang,Wenhong.(2017).Highly-dispersive spin gapless semiconductors in rare-earth-element contained quaternary heusler compounds.Journal of physics d: applied physics,50(10). |
| MLA | Xu,Guizhou,et al."Highly-dispersive spin gapless semiconductors in rare-earth-element contained quaternary heusler compounds".Journal of physics d: applied physics 50.10(2017). |
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