拓扑量子材料与量子反常霍尔效应_何珂拓扑量子材料与量子反常霍尔效应_何珂.pdf

第29 卷 第3 期 材 料 研 究 学 报 Vol. 29 No. 3 2 0 1 5 年 3 月 CHINESE JOURNAL OF MATERIALS RESEARCH March 2 0 1 5 拓扑量子材料与量子反常霍尔效应* 何 珂 薛其坤 (清华大学物理系 低维量子物理国家重点实验室 北京 100084) 摘要简要综述自从2005 年前后发展起来的一类新的材料体系-“拓扑”量子材料, 它包含拓扑绝缘体、拓扑晶体绝缘体、拓 扑超导体和拓扑半金属等。这类材料中较强的自旋轨道耦合作用导致了包括量子反常霍尔效应在内的丰富多彩的量子现 象, 有可能对未来低能耗电子学、拓扑量子计算和清洁能源等技术的发展具有重大的推动作用。 关键词 综述, 拓扑绝缘体, 量子霍尔效应, 量子反常霍尔效应 分类号 O469 文章编号 1005-3093(2015)03-0161-17 Topological Quantum Materials and Quantum Anomalous Hall Effect HE Ke** XUE Qikun** (State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China) *Supported by National Natural Science Foundation of China No. Manuscript received August 12, 2014. **To whom correspondence should be addressed, Tel: (010 E-mail: kehe@, qkxue@mail. . ABSTRACT We briefly review topological quantum materials, a new system of materials developed since 2005, including topological insulators, topological crystalline insulators, topological superconduc- tors, and topological semimetals. The strong spin-orbit coupling in these materials lead to rich quantum phenomena such as quantum anomalous Hall effect, which can significantly promote the developments of new technologies such as low-energy-consuming electronics, topological quantum computation, and green energy. KEY WORDS review, topological insulator, quantum Hall effect, quantum anomalous Hall effect 1 前言 我们打开了一扇通往一个新的材料世界——拓扑 量子材料世