Reversible tuning of the surface state in a pseudobinary Bi2(Te-Se)3 topological insulator

dc.contributor.author Jiang, Rui
dc.contributor.author Wang, Lin-Lin
dc.contributor.author Johnson, Duane
dc.contributor.author Huang, Mianliang
dc.contributor.author Dhaka, R.
dc.contributor.author Lograsso, Thomas
dc.contributor.author Kaminski, Adam
dc.contributor.department Ames National Laboratory
dc.date 2018-02-13T14:27:39.000
dc.date.accessioned 2020-06-29T23:27:06Z
dc.date.available 2020-06-29T23:27:06Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 2012
dc.date.embargo 2013-09-20
dc.date.issued 2012-08-10
dc.description.abstract <p>We use angle-resolved photoemission spectroscopy to study a nontrivial surface state in a pseudobinary Bi<sub>2</sub>Te<sub>2.8</sub>Se<sub>0.2</sub> topological insulator. We show that, unlike previously studied binaries, this is an intrinsic topological insulator with the conduction bulk band residing well above the chemical potential. Our data indicate that under a good vacuum condition there are no significant aging effects for more than two weeks after cleaving. We also demonstrate that the shift of the Kramers point at low temperature is caused by UV-assisted absorption of molecular hydrogen. Our findings pave the way for applications of these materials in devices and present an easy scheme to tune their properties.</p>
dc.description.comments <p>This article is from <em>Physical Review B</em> 86 (2012): 085112, doi:<a href="http://dx.doi.org/10.1103/PhysRevB.86.085112" target="_blank">10.1103/PhysRevB.86.085112</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/ameslab_pubs/36/
dc.identifier.articleid 1038
dc.identifier.contextkey 4609933
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_pubs/36
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/7923
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ameslab_pubs/36/2012_JiangR_ReversibleTuningSurface.pdf|||Fri Jan 14 23:46:09 UTC 2022
dc.source.uri 10.1103/PhysRevB.86.085112
dc.subject.disciplines Condensed Matter Physics
dc.subject.disciplines Materials Science and Engineering
dc.subject.keywords Physics and Astronomy
dc.subject.keywords Materials Science and Engineering
dc.title Reversible tuning of the surface state in a pseudobinary Bi2(Te-Se)3 topological insulator
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication ed24845f-863f-4613-9f76-130602a21b4a
relation.isAuthorOfPublication 316ee29f-99a9-49bc-a048-0f43caf97aa5
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
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