دورية أكاديمية
Surface alloy engineering in 2D trigonal lattice: giant Rashba spin splitting and two large topological gaps
| العنوان: | Surface alloy engineering in 2D trigonal lattice: giant Rashba spin splitting and two large topological gaps |
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| المؤلفون: | Zhao Liu, Yingdi Jin, Yuchen Yang, Z F Wang, Jinlong Yang |
| المصدر: | New Journal of Physics, Vol 20, Iss 2, p 023041 (2018) |
| بيانات النشر: | IOP Publishing, 2018. |
| سنة النشر: | 2018 |
| المجموعة: | LCC:Science LCC:Physics |
| مصطلحات موضوعية: | 2D trigonal lattice, giant Rashba splitting, topological insulator, Science, Physics, QC1-999 |
| الوصف: | We demonstrate that sp ^2 based trigonal lattice can exhibit giant Rashba splitting and two large topological gaps simultaneously. First, an effective tight binding model is developed to describe the Rashba spin–orbit coupling (SOC) on a real surface and give a topological phase diagram based on two independent SOC parameters. Second, based on density functional theory calculations, it is proposed that Au/Si(111)- $\sqrt{3}\times \sqrt{3}$ surface with 1/3 monolayer Bi coverage is a good material candidate to realize both giant Rashba splitting and two large topological gaps. These results would inspire great research interests for searching two-dimensional topological insulator and manipulating Rashba spin splitting through surface alloy engineering. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1367-2630 |
| Relation: | https://doaj.org/toc/1367-2630 |
| DOI: | 10.1088/1367-2630/aaab98 |
| URL الوصول: | https://doaj.org/article/28218e1fdcea4e1f8d4bdadb9568b406 |
| رقم الأكسشن: | edsdoj.28218e1fdcea4e1f8d4bdadb9568b406 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 13672630 |
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| DOI: | 10.1088/1367-2630/aaab98 |