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Article: Quantum anomalous Hall effect in graphene from Rashba and exchange effects

TitleQuantum anomalous Hall effect in graphene from Rashba and exchange effects
Authors
Qiao, ZYang, SAFeng, WTse, WKDing, JYao, YWang, JNiu, Q
Issue Date2010
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B (Condensed Matter and Materials Physics), 2010, v. 82 n. 16, article no. 161414 How to Cite?
DOI: http://dx.doi.org/10.1103/PhysRevB.82.161414
AbstractWe investigate the possibility of realizing quantum anomalous Hall effect in graphene. We show that a bulk energy gap can be opened in the presence of both Rashba spin-orbit coupling and an exchange field. We calculate the Berry curvature distribution and find a nonzero Chern number for the valence bands and demonstrate the existence of gapless edge states. Inspired by this finding, we also study, by first-principles method, a concrete example of graphene with Fe atoms adsorbed on top, obtaining the same result.
Persistent Identifierhttp://hdl.handle.net/10722/129342
ISSN
1098-0121
2014 Impact Factor: 3.736
ISI Accession Number ID
WOS:000283223200002
Funding AgencyGrant Number
NSFDMR0906025
Welch FoundationF-1255
DOE, Division of Materials Science and EngineeringDE-FG02-02ER45958
NSF of China10674163
10974231
RGC from the government of SAR of Hong KongHKU7054/09P
Texas Advanced Research Program
MOST of China2006CB921300
2007CB925000
LuXin Energy Group
Funding Information:

Z.Q. was supported by NSF (Grant No. DMR0906025) and Welch Foundation (Grant No. F-1255). Q.N. was supported by DOE (Grant No. DE-FG02-02ER45958, Division of Materials Science and Engineering) and Texas Advanced Research Program. Y.Y. was supported by NSF of China (Grants No. 10674163 and No. 10974231) and the MOST Project of China (Grants No. 2006CB921300 and 2007CB925000). J.W. was supported by RGC under Grant No. HKU7054/09P from the government of SAR of Hong Kong and LuXin Energy Group. The Texas Advanced Computing Center and Computer Center of the University of Hong Kong are gratefully acknowledged for computing assistance.

 

DC FieldValueLanguage
dc.contributor.authorQiao, Zen_US
dc.contributor.authorYang, SAen_US
dc.contributor.authorFeng, Wen_US
dc.contributor.authorTse, WKen_US
dc.contributor.authorDing, Jen_US
dc.contributor.authorYao, Yen_US
dc.contributor.authorWang, Jen_US
dc.contributor.authorNiu, Qen_US
dc.date.accessioned2010-12-23T08:35:40Z-
dc.date.available2010-12-23T08:35:40Z-
dc.date.issued2010en_US
dc.identifier.citationPhysical Review B (Condensed Matter and Materials Physics), 2010, v. 82 n. 16, article no. 161414-
dc.identifier.issn1098-0121-
dc.identifier.urihttp://hdl.handle.net/10722/129342-
dc.description.abstractWe investigate the possibility of realizing quantum anomalous Hall effect in graphene. We show that a bulk energy gap can be opened in the presence of both Rashba spin-orbit coupling and an exchange field. We calculate the Berry curvature distribution and find a nonzero Chern number for the valence bands and demonstrate the existence of gapless edge states. Inspired by this finding, we also study, by first-principles method, a concrete example of graphene with Fe atoms adsorbed on top, obtaining the same result.-
dc.languageengen_US
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/en_US
dc.relation.ispartofPhysical Review B (Condensed Matter and Materials Physics)-
dc.rightsCopyright 2010 by The American Physical Society. This article is available online at https://doi.org/10.1103/PhysRevB.82.161414-
dc.titleQuantum anomalous Hall effect in graphene from Rashba and exchange effectsen_US
dc.typeArticleen_US
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1098-0121&volume=82&issue=16, article no. 161414&spage=&epage=&date=2010&atitle=Quantum+anomalous+Hall+effect+in+graphene+from+Rashba+and+exchange+effects-
dc.identifier.emailWang, J: jianwang@hkusub.hku.hken_US
dc.identifier.authorityWang, J=rp00799en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1103/PhysRevB.82.161414-
dc.identifier.scopuseid_2-s2.0-78149287627en_US
dc.identifier.hkuros183426en_US
dc.identifier.volume82en_US
dc.identifier.issue16-
dc.identifier.spagearticle no. 161414-
dc.identifier.epagearticle no. 161414-
dc.identifier.isiWOS:000283223200002-
dc.identifier.issnl1098-0121-

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