Electric Control of the Edge Magnetization in Zigzag Stanene Nanoribbons from First Principles
| Autor: | Jingshan Qi, Kaige Hu, Xiao Li |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Spin states Spintronics Condensed matter physics Graphene Magnetism General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences law.invention Magnetic anisotropy Magnetization Zigzag law 0103 physical sciences Stanene 010306 general physics 0210 nano-technology |
| Zdroj: | Physical Review Applied. 10 |
| ISSN: | 2331-7019 |
| DOI: | 10.1103/physrevapplied.10.034048 |
| Popis: | To learn how best to manipulate spin states in low-dimensional structures, the authors use density functional theory to study the magnetism at the edges of nanoribbons of stanene (think graphene, but made of tin, and thus featuring strong spin-orbit coupling). Based on their several findings, they propose that both magnetic anisotropy and exchange coupling can be controlled by carrier doping, for experimentally feasible gate modulation of magnetization in the nanoribbon. Further tuning by a transverse electric field would give full access to spin and valley degrees of freedom. These intriguing results offer a practical approach to energy-efficient spintronic devices. |
| Databáze: | OpenAIRE |
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