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现任西安交通大学材料学院教授，入选"青年拔尖人才计划"。复旦大学博士，先后在东京大学、德州大学奥斯汀分校从事研究，2019年加入西交大。致力于先进电子材料与器件的计算研究，聚焦芯片器件小型化的功耗挑战，发展界面结构与输运计算方法，提出协同调控界面量子效应降低信息传输能耗的新途径。发表SCI论文80余篇，一作/通讯50余篇，包括Phys. Rev. Lett.、Nat. Commun.等，总引用2900余次。先后主持5项国家级项目，并获省杰出青年基金资助
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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