Quantum capacitance of an ultrathin topological insulator film in a magnetic field

Handle URI:
http://hdl.handle.net/10754/325378
Title:
Quantum capacitance of an ultrathin topological insulator film in a magnetic field
Authors:
Tahir, M.; Sabeeh, K.; Schwingenschlögl, Udo ( 0000-0003-4179-7231 )
Abstract:
We present a theoretical study of the quantum magnetocapacitance of an ultrathin topological insulator film in an external magnetic field. The study is undertaken to investigate the interplay of the Zeeman interaction with the hybridization between the upper and lower surfaces of the thin film. Determining the density of states, we find that the electron-hole symmetry is broken when the Zeeman and hybridization energies are varied relative to each other. This leads to a change in the character of the magnetocapacitance at the charge neutrality point. We further show that in the presence of both Zeeman interaction and hybridization the magnetocapacitance exhibits beating at low and splitting of the Shubnikov de Haas oscillations at high perpendicular magnetic field. In addition, we address the crossover from perpendicular to parallel magnetic field and find consistency with recent experimental data.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Tahir M, Sabeeh K, Schwingenschlögl U (2013) Quantum capacitance of an ultrathin topological insulator film in a magnetic field. Sci Rep 3. doi:10.1038/srep01261.
Publisher:
Nature Publishing Group
Journal:
Scientific Reports
Issue Date:
12-Feb-2013
DOI:
10.1038/srep01261
PubMed ID:
23405275
PubMed Central ID:
PMC3569631
Type:
Article
ISSN:
20452322
Additional Links:
http://arxiv.org/abs/1302.1327
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorTahir, M.en
dc.contributor.authorSabeeh, K.en
dc.contributor.authorSchwingenschlögl, Udoen
dc.date.accessioned2014-08-27T09:49:55Zen
dc.date.available2014-08-27T09:49:55Zen
dc.date.issued2013-02-12en
dc.identifier.citationTahir M, Sabeeh K, Schwingenschlögl U (2013) Quantum capacitance of an ultrathin topological insulator film in a magnetic field. Sci Rep 3. doi:10.1038/srep01261.en
dc.identifier.issn20452322en
dc.identifier.pmid23405275en
dc.identifier.doi10.1038/srep01261en
dc.identifier.urihttp://hdl.handle.net/10754/325378en
dc.description.abstractWe present a theoretical study of the quantum magnetocapacitance of an ultrathin topological insulator film in an external magnetic field. The study is undertaken to investigate the interplay of the Zeeman interaction with the hybridization between the upper and lower surfaces of the thin film. Determining the density of states, we find that the electron-hole symmetry is broken when the Zeeman and hybridization energies are varied relative to each other. This leads to a change in the character of the magnetocapacitance at the charge neutrality point. We further show that in the presence of both Zeeman interaction and hybridization the magnetocapacitance exhibits beating at low and splitting of the Shubnikov de Haas oscillations at high perpendicular magnetic field. In addition, we address the crossover from perpendicular to parallel magnetic field and find consistency with recent experimental data.en
dc.language.isoenen
dc.publisherNature Publishing Groupen
dc.relation.urlhttp://arxiv.org/abs/1302.1327en
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.titleQuantum capacitance of an ultrathin topological insulator film in a magnetic fielden
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalScientific Reportsen
dc.identifier.pmcidPMC3569631en
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:1302.1327en
kaust.authorTahir, Muhammaden
kaust.authorSchwingenschlögl, Udoen

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