期刊
PHYSICAL REVIEW B
卷 92, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.92.115433
关键词
-
资金
- MEC-Spain [FIS2013-47328-C2-2-P]
- Generalitat Valenciana, Prometeo [ACOMP/2010/070]
- FEDER
- Marie-Curie-ITN Grant [607904-SPINOGRAPH]
Skyrmions are topologically protected spin textures, characterized by a topological winding number N, that occur spontaneously in some magnetic materials. Recent experiments have demonstrated the capability to grow graphene on top Fe/Ir, a system that exhibits a two-dimensional skyrmion lattice. Here we show that a weak exchange coupling between the Dirac electrons in graphene and a two-dimensional skyrmion lattice with N = +/- 1 drives graphene into a quantum anomalous Hall phase, with a band gap in bulk, a Chern number C = 2N, and chiral edge states with perfect quantization of conductance G = 2Ne(2)/h. Our findings imply that the topological properties of the skyrmion lattice can be imprinted in the Dirac electrons of graphene.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据