Ontology highlight
ABSTRACT:
SUBMITTER: Pi ST
PROVIDER: S-EPMC4786851 | biostudies-other | 2016 Mar
REPOSITORIES: biostudies-other
Pi Shu-Ting ST Savrasov Sergey S
Scientific reports 20160311
Z2 and Chern topological phases such as newly discovered quantum spin Hall and original quantum Hall states hardly both co-exist in a single material due to their contradictory requirement on the time-reversal symmetry (TRS). We show that although the TRS is broken in systems with a periodically driving field, an effective TRS can still be defined provided the ac-field is linearly polarized or certain other conditions are satisfied. The controllable TRS provides us a route to manipulate contradi ...[more]