Valley polarized quantum Hall effect and topological insulator phase transitions in silicene

Handle URI:
http://hdl.handle.net/10754/325374
Title:
Valley polarized quantum Hall effect and topological insulator phase transitions in silicene
Authors:
Tahir, M.; Schwingenschlögl, Udo ( 0000-0003-4179-7231 )
Abstract:
The electronic properties of silicene are distinct from both the conventional two dimensional electron gas and the famous graphene due to strong spin orbit interaction and the buckled structure. Silicene has the potential to overcome limitations encountered for graphene, in particular the zero band gap and weak spin orbit interaction. We demonstrate a valley polarized quantum Hall effect and topological insulator phase transitions. We use the Kubo formalism to discuss the Hall conductivity and address the longitudinal conductivity for elastic impurity scattering in the first Born approximation. We show that the combination of an electric field with intrinsic spin orbit interaction leads to quantum phase transitions at the charge neutrality point, providing a tool to experimentally tune the topological state. Silicene constitutes a model system for exploring the spin and valley physics not accessible in graphene due to the small spin orbit interaction.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Tahir M, Schwingenschlögl U (2013) Valley polarized quantum Hall effect and topological insulator phase transitions in silicene. Sci Rep 3. doi:10.1038/srep01075.
Publisher:
Nature Publishing Group
Journal:
Scientific Reports
Issue Date:
25-Jan-2013
DOI:
10.1038/srep01075
PubMed ID:
23355947
PubMed Central ID:
PMC3555089
Type:
Article
ISSN:
20452322
Additional Links:
http://arxiv.org/abs/1207.4745
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorTahir, M.en
dc.contributor.authorSchwingenschlögl, Udoen
dc.date.accessioned2014-08-27T09:49:47Zen
dc.date.available2014-08-27T09:49:47Zen
dc.date.issued2013-01-25en
dc.identifier.citationTahir M, Schwingenschlögl U (2013) Valley polarized quantum Hall effect and topological insulator phase transitions in silicene. Sci Rep 3. doi:10.1038/srep01075.en
dc.identifier.issn20452322en
dc.identifier.pmid23355947en
dc.identifier.doi10.1038/srep01075en
dc.identifier.urihttp://hdl.handle.net/10754/325374en
dc.description.abstractThe electronic properties of silicene are distinct from both the conventional two dimensional electron gas and the famous graphene due to strong spin orbit interaction and the buckled structure. Silicene has the potential to overcome limitations encountered for graphene, in particular the zero band gap and weak spin orbit interaction. We demonstrate a valley polarized quantum Hall effect and topological insulator phase transitions. We use the Kubo formalism to discuss the Hall conductivity and address the longitudinal conductivity for elastic impurity scattering in the first Born approximation. We show that the combination of an electric field with intrinsic spin orbit interaction leads to quantum phase transitions at the charge neutrality point, providing a tool to experimentally tune the topological state. Silicene constitutes a model system for exploring the spin and valley physics not accessible in graphene due to the small spin orbit interaction.en
dc.language.isoenen
dc.publisherNature Publishing Groupen
dc.relation.urlhttp://arxiv.org/abs/1207.4745en
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/en
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/en
dc.titleValley polarized quantum Hall effect and topological insulator phase transitions in siliceneen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalScientific Reportsen
dc.identifier.pmcidPMC3555089en
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionUnidad Académica de Sistemas Arrecifales (Puerto Morelos), Instituto de Ciencias Del Mar y Limnología, Universidad Nacional Autõnoma de México, Puerto Morelos, QR 77580, Mexicoen
dc.contributor.institutionSchool of Natural Sciences, University of California Merced, 5200 North Lake Road, Merced, CA 95343, United Statesen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
dc.identifier.arxividarXiv:1207.4745en
kaust.authorTahir, Muhammaden
kaust.authorSchwingenschlögl, Udoen

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