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西安交通大学材料学院教授，入选该校"青年拔尖人才计划"。博士毕业于复旦大学，先后在东京大学、德克萨斯大学奥斯汀分校开展博士后研究，2019年加入西安交通大学。课题组致力于人工智能与数值计算驱动的先进电子材料与器件设计，围绕存算一体器件与新能源器件两大方向，开展从材料预测到器件设计的全链条研究。已在 Phys. Rev. Lett.、 Nat. Commun. Adv. Matter. 等期刊发表SCI论文80余篇（一作/通讯50余篇），总引用3000余次；主持国家级项目5项，并获省杰出青年科学基金资助。欢迎对计算材料、AI for Science、存算一体与自旋电子学感兴趣的同学加入课题组！
发布时间：2026-05-21
论文名称：Q. Lu, P. Li, Zhi-Xin Guo*, G. Dong*, B. Peng, X. Zha, T. Min, Z. Zhou, M. Liu*, Giant tunable spin Hall angle in sputtered Bi2Se3 controlled by an electric field, Nature Communications 13, 1650 (2022).
摘要：Finding an effective way to greatly tune spin Hall angle in a low power manner is of fundamental importance for tunable and energy-efficient spintronic devices. Recently, topological insulator of Bi2Se3, having a large intrinsic spin Hall angle, show great capability to generate strong current-induced spin-orbit torques. Here we demonstrate that the spin Hall angle in Bi2Se3 can be effectively tuned asymmetrically and even enhanced about 600% reversibly by applying a bipolar electric field across the piezoelectric substrate. We reveal that the enhancement of spin Hall angle originates from both the charge doping and piezoelectric strain effet on the spin Berry curvature near Fermi level in Bi2Se3. Our findings provide a platform for achieving low power consumption and tunable spintronic devices.
论文类型：期刊论文
是否译文：否
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