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Magnetotransport in disordered two-dimensional topological insulators: signatures of charge puddles
Essert, Sven and Richter, Klaus (2015) Magnetotransport in disordered two-dimensional topological insulators: signatures of charge puddles. 2D Materials 2 (2), 024005.Date of publication of this fulltext: 23 Feb 2015 11:11
Article
DOI to cite this document: 10.5283/epub.31358
Abstract
In this numerical study we investigate the influence and interplay of disorder, spin-orbit coupling and magnetic field on the edge-transport in HgTe/CdTe quantum wells in the framework of coherent elastic scattering. We show that the edge states remain unaffected by the combined effect of moderate disorder and a weak magnetic field at realistic spin-orbit coupling strengths. Agreement with the ...
In this numerical study we investigate the influence and interplay of disorder, spin-orbit coupling and magnetic field on the edge-transport in HgTe/CdTe quantum wells in the framework of coherent elastic scattering. We show that the edge states remain unaffected by the combined effect of moderate disorder and a weak magnetic field at realistic spin-orbit coupling strengths. Agreement with the experimentally observed linear magnetic field dependence for the conductance of long samples is obtained when considering the existence of charge puddles.
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Details
| Item type | Article | ||||||
| Journal or Publication Title | 2D Materials | ||||||
| Publisher: | IOP PUBLISHING LTD | ||||||
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| Place of Publication: | BRISTOL | ||||||
| Volume: | 2 | ||||||
| Number of Issue or Book Chapter: | 2 | ||||||
| Page Range: | 024005 | ||||||
| Date | 5 May 2015 | ||||||
| Institutions | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter | ||||||
| Identification Number |
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| Keywords | STATE; 2d topological insulators; HgTe/CdTe quantum wells; magnetotransport; charge puddles; spin-orbit coupling; disorder | ||||||
| Dewey Decimal Classification | 500 Science > 530 Physics | ||||||
| Status | Published | ||||||
| Refereed | Yes, this version has been refereed | ||||||
| Created at the University of Regensburg | Yes | ||||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-313581 | ||||||
| Item ID | 31358 |
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