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Krueckl, Viktor ; Richter, Klaus

Weak localization and Berry phases in HgTe quantum wells (Vol. 44 No. 2) = Verweis auf: Probing the Band Topology of Mercury Telluride through Weak Localization and Antilocalization

Krueckl, Viktor and Richter, Klaus (2012) Weak localization and Berry phases in HgTe quantum wells (Vol. 44 No. 2) = Verweis auf: Probing the Band Topology of Mercury Telluride through Weak Localization and Antilocalization. Semiconductor Science and Technology 27 (12), p. 124006.

Date of publication of this fulltext: 15 Feb 2022 05:30
Article
DOI to cite this document: 10.5283/epub.51589

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Abstract

We analyze the effect of weak localization (WL) and weak antilocalization (WAL) in the electronic transport through HgTe/CdTe quantum wells. We show that for increasing Fermi energy, the magnetoconductance of a diffusive system with inverted band ordering features a transition from WL to WAL and back, if spin–orbit interactions from bulk and structure inversion asymmetries can be neglected. This, ...

We analyze the effect of weak localization (WL) and weak antilocalization (WAL) in the electronic transport through HgTe/CdTe quantum wells. We show that for increasing Fermi energy, the magnetoconductance of a diffusive system with inverted band ordering features a transition from WL to WAL and back, if spin–orbit interactions from bulk and structure inversion asymmetries can be neglected. This, and an additional splitting in the magnetoconductance profile, is a signature of the Berry phase arising for inverted band ordering and is not present in heterostructures with conventional ordering. In the presence of spin–orbit interaction, both band topologies exhibit WAL, which is distinctly energy dependent for quantum wells with inverted band ordering. This can be explained by an energy-dependent decomposition of the Hamiltonian into two blocks.



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Details

Item typeArticle
Journal or Publication TitleSemiconductor Science and Technology
Publisher:Institute of Physics
Volume:27
Number of Issue or Book Chapter:12
Page Range:p. 124006
Date15 November 2012
Additional Information (public)This article was also highlighted in Europhysics News Vol. 44 No. 2.
InstitutionsPhysics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter
Identification Number
ValueType
10.1088/0268-1242/27/12/124006DOI
arXiv:1207.1294arXiv ID
Related URLs
URLURL Type
https://www.europhysicsnews.org/vol-44-no-2-highlightsOther
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
Item ID51589

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