Quantum spin/valley Hall effect and topological insulator phase transitions in silicene

Handle URI:
http://hdl.handle.net/10754/314509
Title:
Quantum spin/valley Hall effect and topological insulator phase transitions in silicene
Authors:
Tahir, M.; Manchon, Aurelien ( 0000-0002-4768-293X ) ; Sabeeh, K.; Schwingenschlögl, Udo ( 0000-0003-4179-7231 )
Abstract:
We present a theoretical realization of quantum spin and quantum valley Hall effects in silicene. We show that combination of an electric field and intrinsic spin-orbit interaction leads to quantum phase transitions at the charge neutrality point. This phase transition from a two dimensional topological insulator to a trivial insulating state is accompanied by a quenching of the quantum spin Hall effect and the onset of a quantum valley Hall effect, providing a tool to experimentally tune the topological state of silicene. In contrast to graphene and other conventional topological insulators, the proposed effects in silicene are accessible to experiments.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Computational Physics and Materials Science (CPMS)
Citation:
Tahir M, Manchon A, Sabeeh K, Schwingenschlögl U (2013) Quantum spin/valley Hall effect and topological insulator phase transitions in silicene. Appl Phys Lett 102: 162412. doi:10.1063/1.4803084.
Publisher:
American Institute of Physics
Journal:
Applied Physics Letters
Issue Date:
26-Apr-2013
DOI:
10.1063/1.4803084
Type:
Article
ISSN:
00036951
Additional Links:
http://scitation.aip.org/content/aip/journal/apl/102/16/10.1063/1.4803084; http://arxiv.org/abs/1206.3650
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Computational Physics and Materials Science (CPMS)

Full metadata record

DC FieldValue Language
dc.contributor.authorTahir, M.en
dc.contributor.authorManchon, Aurelienen
dc.contributor.authorSabeeh, K.en
dc.contributor.authorSchwingenschlögl, Udoen
dc.date.accessioned2014-03-23T08:25:42Z-
dc.date.available2014-03-23T08:25:42Z-
dc.date.issued2013-04-26en
dc.identifier.citationTahir M, Manchon A, Sabeeh K, Schwingenschlögl U (2013) Quantum spin/valley Hall effect and topological insulator phase transitions in silicene. Appl Phys Lett 102: 162412. doi:10.1063/1.4803084.en
dc.identifier.issn00036951en
dc.identifier.doi10.1063/1.4803084en
dc.identifier.urihttp://hdl.handle.net/10754/314509en
dc.description.abstractWe present a theoretical realization of quantum spin and quantum valley Hall effects in silicene. We show that combination of an electric field and intrinsic spin-orbit interaction leads to quantum phase transitions at the charge neutrality point. This phase transition from a two dimensional topological insulator to a trivial insulating state is accompanied by a quenching of the quantum spin Hall effect and the onset of a quantum valley Hall effect, providing a tool to experimentally tune the topological state of silicene. In contrast to graphene and other conventional topological insulators, the proposed effects in silicene are accessible to experiments.en
dc.language.isoenen
dc.publisherAmerican Institute of Physicsen
dc.relation.urlhttp://scitation.aip.org/content/aip/journal/apl/102/16/10.1063/1.4803084en
dc.relation.urlhttp://arxiv.org/abs/1206.3650en
dc.rightsArchived with thanks to Applied Physics Lettersen
dc.titleQuantum spin/valley Hall effect and topological insulator phase transitions in siliceneen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentComputational Physics and Materials Science (CPMS)en
dc.identifier.journalApplied Physics Lettersen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Physics, Quaid-i-Azam University, Islamabad 45320, Pakistanen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
dc.identifier.arxividarXiv:1206.3650en
kaust.authorTahir, Muhammaden
kaust.authorManchon, Aurelienen
kaust.authorSchwingenschlögl, Udoen
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