https://scholars.lib.ntu.edu.tw/handle/123456789/573461
標題: | Electrically controllable magnetic properties of Fe-doped GaSe monolayer | 作者: | Ke C., Wu Y., Guo G.-Y., Wu Z., Kang J. Wu Y. Guo G.-Y. Wu Z. GUANG-YU GUO |
關鍵字: | Density functional theory; Electric fields; Gallium compounds; Iron compounds; Layered semiconductors; Magnetic anisotropy; Magnetic moments; Selenium compounds; Spin polarization; Antiferromagnetic coupling; Critical electric field; external electric feld; Fe-doped; Ferromagnetic coupling; Magnetic configuration; Perpendicular magnetic anisotropy; Spintronic applications; Monolayers | 公開日期: | 2019 | 卷: | 15 | 期: | 17 | 來源出版物: | Journal of Physics D: Applied Physics | 摘要: | Electrically controllable magnetic properties in 2D materials are promising for the development of the next-generation of magnetic and spintronic applications. In this paper, a theoretical design of magnetic property modulation in an Fe-doped GaSe monolayer is provided based on systematical density functional theory calculations. A ferromagnetic coupling between Fe and the vicinal Ga atom in the Fe-doped GaSe monolayer is found to be regulated to an antiferromagnetic coupling at a critical electric field of 0.2 V ? -1 , accompanied with the change of the magnetic moment and the spin polarization. By calculating the magnetization energy, total energy, charge redistribution, and orbital-decomposed densities of states, the significant effect of the electric field on the magnetic configuration and magnetic anisotropy in the Fe-doped GaSe monolayer is analyzed, and the related physics mechanism is revealed. The electric-field tunable magnetic properties offer a promising application in magnetic and spintronic devices. ? 2019 IOP Publishing Ltd. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85063970923&doi=10.1088%2f1361-6463%2fab03e9&partnerID=40&md5=ad0abbde25692e9b16b85451ae3bfe3b https://scholars.lib.ntu.edu.tw/handle/123456789/573461 |
ISSN: | 223727 | DOI: | 10.1088/1361-6463/ab03e9 |
顯示於: | 物理學系 |
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