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From coupled Rashba electron- and hole-gas layers to three-dimensional topological insulators

Trifunovic, L. and Loss, D. and Klinovaja, J.. (2016) From coupled Rashba electron- and hole-gas layers to three-dimensional topological insulators. Physical Review B, 93 (20). p. 6.

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Official URL: http://edoc.unibas.ch/53469/

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Abstract

We introduce a system of stacked two-dimensional electron-and hole-gas layers with Rashba spin-orbit interaction and show that the tunnel coupling between the layers induces a strong three-dimensional (3D) topological insulator phase. At each of the two-dimensional bulk boundaries we find the spectrum consisting of a single anisotropic Dirac cone, which we show by analytical and numerical calculations. Our setup has a unit cell consisting of four tunnel coupled Rashba layers and presents a synthetic strong 3D topological insulator and is distinguished by its rather high experimental feasibility.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretical Nano/Quantum Physics (Klinovaja)
05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Mesoscopics (Loss)
UniBasel Contributors:Loss, Daniel and Klinovaja, Jelena
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
ISSN:2469-9950
e-ISSN:2469-9969
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:10 May 2017 10:51
Deposited On:20 Feb 2017 09:04

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