https://scholars.lib.ntu.edu.tw/handle/123456789/633920
標題: | Anisotropic spin-to-charge conversion in bismuth | 作者: | Liang, Hsia Ling Chuang, T. C. Qu, Danru Chiang, C. C. Lee, Ming Hao Chen, Y. S. JAUYN GRACE LIN MING-WEN CHU Chien, C. L. SSU-YEN HUANG |
公開日期: | 15-十一月-2022 | 卷: | 106 | 期: | 20 | 來源出版物: | Physical Review B | 摘要: | Many intriguing physical phenomena have emerged from the Bi-containing materials due to the interplay of band topology and strong spin-orbit coupling (SOC). In this work, we report anisotropic spin-to-charge conversion in Bi, a semimetal endowed with highly anisotropic Fermi surfaces in addition to strong SOC. The value of spin Hall angle θSH in Bi, that measures the spin-to-charge conversion efficiency, varies from θSH≈0 to θSH≈2.6% for two predominant crystal orientations. In addition, the propensity of oxidation and interface quality also affect the spin-to-charge conversion in Bi. The highly anisotropic spin-to-charge conversion between Bi(003) and Bi(012) provide significant insights into the exploration and development of Bi-based topological quantum materials and spintronics. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/633920 | ISSN: | 24699950 | DOI: | 10.1103/PhysRevB.106.L201304 |
顯示於: | 物理學系 |
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