论文类型：期刊论文
第一作者：Hongming Weng
通讯作者：Zhong Fang,Xi Dai
合写作者：Shou-Cheng Zhang,Haijun Zhang,Gang Xu
发表刊物：Physical Review B
收录刊物：SCI
学科门类：物理学
文献类型：J
卷号：84
期号：6
页面范围：060408
ISSN号：2469-9950
发表时间：2011-08-30
影响因子：3.691
摘要：Based on first-principles calculations, we predict a half-metallic surface state in layered bulk insulator NaCoO2, with tunable surface hole concentration. The half-metallic surface has a single Fermi surface with a helical spin texture, similar to the surface state of topological insulators, but with the key difference of time-reversal symmetry breaking in the present case. We propose the realization of topological superconductivity and Majorana fermions when the half-metallic surface states are in proximity contact with a conventional superconductor.
发布期刊链接：https://journals.aps.org/prb/abstract/10.1103/PhysRevB.84.060408