Engineering anomalous quantum Hall plateaus and antichiral states with ac fields

被引：71
|
作者：
Gomez-Leon, Alvaro [1 ,3 ,4 ]
Delplace, Pierre [2 ]
Platero, Gloria [1 ]
机构：
[1] CSIC, Inst Ciencia Mat, E-28049 Madrid, Spain
[2] Univ Geneva, Dept Phys Theor, CH-1211 Geneva, Switzerland
[3] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada
[4] Pacific Inst Theoret Phys, Vancouver, BC V6T 1Z1, Canada
来源：
PHYSICAL REVIEW B | 2014年 / 89卷 / 20期
关键词：
FLOQUET TOPOLOGICAL INSULATORS; WELLS; SURFACE;
D O I：
10.1103/PhysRevB.89.205408
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We investigate the ac electric field induced quantum anomalous Hall effect in honeycomb lattices and derive the full phase diagram for arbitrary field amplitude and phase polarization. We show how to induce antichiral edge modes as well as topological phases characterized by a Chern number larger than 1 by means of suitable drivings. In particular, we find that the Chern number develops plateaus as a function of the frequency, providing a time-dependent analog to the ones in the quantum Hall effect.
引用
收藏
页数：7
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