File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Finite size effects on helical edge states in a quantum spin-hall system

TitleFinite size effects on helical edge states in a quantum spin-hall system
Authors
Issue Date2008
PublisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.org
Citation
Physical Review Letters, 2008, v. 101 n. 24 How to Cite?
AbstractThe hallmark of the spin-Hall insulator is the presence of gapless edge states of different spins moving in opposite directions. Through analytical solutions in a model calculation for a strip of finite width, we find that edge states on the two sides can couple together to produce a gap in the spectrum, destroying the quantum spin-Hall effect. The application of a magnetic field can however modify and even remove the gap by shifting the momenta of the edge states relative to each other. © 2008 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/59575
ISSN
2015 Impact Factor: 7.645
2015 SCImago Journal Rankings: 3.731
ISI Accession Number ID
Funding AgencyGrant Number
Research Grant Council of Hong KongHKU 7042/06P
Funding Information:

S. Q. S. thanks S. C. Zhang for helpful discussions. This work was supported by the Research Grant Council of Hong Kong under Grant No. HKU 7042/06P and the CRCG of the University of Hong Kong.

References
Grants

 

DC FieldValueLanguage
dc.contributor.authorZhou, Ben_HK
dc.contributor.authorLu, HZen_HK
dc.contributor.authorChu, RLen_HK
dc.contributor.authorShen, SQen_HK
dc.contributor.authorNiu, Qen_HK
dc.date.accessioned2010-05-31T03:53:05Z-
dc.date.available2010-05-31T03:53:05Z-
dc.date.issued2008en_HK
dc.identifier.citationPhysical Review Letters, 2008, v. 101 n. 24en_HK
dc.identifier.issn0031-9007en_HK
dc.identifier.urihttp://hdl.handle.net/10722/59575-
dc.description.abstractThe hallmark of the spin-Hall insulator is the presence of gapless edge states of different spins moving in opposite directions. Through analytical solutions in a model calculation for a strip of finite width, we find that edge states on the two sides can couple together to produce a gap in the spectrum, destroying the quantum spin-Hall effect. The application of a magnetic field can however modify and even remove the gap by shifting the momenta of the edge states relative to each other. © 2008 The American Physical Society.en_HK
dc.languageengen_HK
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.orgen_HK
dc.relation.ispartofPhysical Review Lettersen_HK
dc.rightsPhysical Review Letters. Copyright © American Physical Society.en_HK
dc.titleFinite size effects on helical edge states in a quantum spin-hall systemen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0031-9007&volume=101&spage=246807: 1&epage=4&date=2008&atitle=Finite+size+effects+on+helical+edge+states+in+a+quantum+spin-Hall+systemen_HK
dc.identifier.emailLu, HZ: luhz@hku.hken_HK
dc.identifier.emailShen, SQ: sshen@hkucc.hku.hken_HK
dc.identifier.authorityLu, HZ=rp01599en_HK
dc.identifier.authorityShen, SQ=rp00775en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevLett.101.246807en_HK
dc.identifier.scopuseid_2-s2.0-57749119347en_HK
dc.identifier.hkuros154208en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-57749119347&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume101en_HK
dc.identifier.issue24en_HK
dc.identifier.eissn1079-7114-
dc.identifier.isiWOS:000261704100048-
dc.publisher.placeUnited Statesen_HK
dc.relation.projectSpin transverse force and its applications in quantum spin and charge transport-
dc.identifier.scopusauthoridZhou, B=7401906664en_HK
dc.identifier.scopusauthoridLu, HZ=24376662200en_HK
dc.identifier.scopusauthoridChu, RL=25925722300en_HK
dc.identifier.scopusauthoridShen, SQ=7403431266en_HK
dc.identifier.scopusauthoridNiu, Q=7006052653en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats