Reference : Transport through a quantum spin Hall antidot as a spectroscopic probe of spin textures
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/10993/27429
Transport through a quantum spin Hall antidot as a spectroscopic probe of spin textures
English
Rod, Alexia mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit > ; Technische Universität Dresden - TUD > Institute for Theoretical Physics]
Dolcetto, Giacomo mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
Rachel, Stephan [Technische Universität Dresden - TUD > Institute for Theoretical Physics]
Schmidt, Thomas mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
18-Jul-2016
Physical Review B
American Physical Society
94
035428
Yes (verified by ORBilu)
International
2469-9950
2469-9969
[en] We investigate electron transport through an antidot embedded in a narrow strip of two-dimensional topological insulator. We focus on the most generic and experimentally relevant case with broken axial spin symmetry. Spin-non-conservation allows additional scattering processes which change the transport properties profoundly. We start from an analytical model for noninteracting transport, which we also compare with a numerical tight-binding simulation. We then extend this model by including Coulomb repulsion on the antidot, and we study the transport in the Coulomb-blockade limit. We investigate sequential tunneling and cotunneling regimes, and we find that the current-voltage characteristic allows a spectroscopic measurement of the edge-state spin textures.
Fonds National de la Recherche - FnR ; DFG
http://hdl.handle.net/10993/27429
10.1103/PhysRevB.94.035428
The original publication is available at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.035428 ©2016 American Physical Society

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