Kazakov, A. S. and Galeeva, A. V. and Artamkin, A. I. and Ikonnikov, A. V. and Ryabova, L. I. and Dvoretsky, S. A. and Mikhailov, N. N. and Bannikov, M. I. and Danilov, S. N. and Khokhlov, D. R. (2021) Non-local terahertz photoconductivity in the topological phase of Hg1-xCdxTe. SCIENTIFIC REPORTS, 11 (1): 1587. ISSN 2045-2322,
Full text not available from this repository. (Request a copy)Abstract
We report on observation of strong non-local photoconducitivity induced by terahertz laser pulses in non-zero magnetic field in heterostructures based on Hg1-xCdxTe films being in the topological phase. While the zero-field non-local photoconductivity is negligible, it is strongly enhanced in magnetic fields similar to 0.05 T resulting in appearance of an edge photocurrent that exceeds the respective dark signal by orders of magnitude. This photocurrent is chiral, and the chirality changes every time the magnetic field or the electric bias is reversed. Appearance of the non-local terahertz photoconductivity is attributed to features of the interface between the topological film and the trivial buffer.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MASSLESS KANE FERMIONS; TRANSPORT; TRANSITION; INSULATOR; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Sep 2022 09:44 |
| Last Modified: | 14 Sep 2022 09:44 |
| URI: | https://pred.uni-regensburg.de/id/eprint/47454 |
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