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Nanomaterials, volume 11, issue 12, pages 3207

Photoelectromagnetic effect induced by terahertz laser radiation in topological crystalline insulators pb1−xsnxte

Galeeva Alexandra V 1
Belov Dmitry A. 1
Kazakov Aleksei S 1
Artamkin Alexey I 1
Ryabova Ludmila I. 1
Volobuev V.V 2, 3, 4
Khokhlov Dmitry R 1, 6
2
 
Institute of Semiconductor and Solid State Physics, Johannes Kepler University of Linz, 4040 Linz, Austria
3
 
International Research Centre Mag Top, Institute of Physics, Polish Academy of Sciences, PL-02668 Warsaw, Poland
4
 
Department of Metals and Semiconductor Physics, National Technical University “KhPI”, 61000 Kharkiv, Ukraine
5
 
Faculty of Physics, University of Regensburg, 93053 Regensburg, Germany
Publication typeJournal Article
Publication date2021-11-26
Journal: Nanomaterials
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor5.3
ISSN20794991
PubMed ID:  34947558
General Chemical Engineering
General Materials Science
Abstract

Topological crystalline insulators form a class of semiconductors for which surface electron states with the Dirac dispersion relation are formed on surfaces with a certain crystallographic orientation. Pb1−xSnxTe alloys belong to the topological crystalline phase when the SnTe content x exceeds 0.35, while they are in the trivial phase at x < 0.35. For the surface crystallographic orientation (111), the appearance of topologically nontrivial surface states is expected. We studied the photoelectromagnetic (PEM) effect induced by laser terahertz radiation in Pb1−xSnxTe films in the composition range x = (0.11–0.44), with the (111) surface crystallographic orientation. It was found that in the trivial phase, the amplitude of the PEM effect is determined by the power of the incident radiation, while in the topological phase, the amplitude is proportional to the flux of laser radiation quanta. A possible mechanism responsible for the effect observed presumes damping of the thermalization rate of photoexcited electrons in the topological phase and, consequently, prevailing of electron diffusion, compared with energy relaxation.

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Galeeva A. V. et al. Photoelectromagnetic effect induced by terahertz laser radiation in topological crystalline insulators pb1−xsnxte // Nanomaterials. 2021. Vol. 11. No. 12. p. 3207.
GOST all authors (up to 50) Copy
Galeeva A. V., Belov D. A., Kazakov A. S., Ikonnikov A. V., Artamkin A. I., Ryabova L. I., Volobuev V., Springholz G., Danilov S. N., Khokhlov D. R. Photoelectromagnetic effect induced by terahertz laser radiation in topological crystalline insulators pb1−xsnxte // Nanomaterials. 2021. Vol. 11. No. 12. p. 3207.
RIS |
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RIS Copy
TY - JOUR
DO - 10.3390/nano11123207
UR - https://doi.org/10.3390%2Fnano11123207
TI - Photoelectromagnetic effect induced by terahertz laser radiation in topological crystalline insulators pb1−xsnxte
T2 - Nanomaterials
AU - Galeeva, Alexandra V
AU - Belov, Dmitry A.
AU - Kazakov, Aleksei S
AU - Artamkin, Alexey I
AU - Ryabova, Ludmila I.
AU - Ikonnikov, Anton V
AU - Volobuev, V.V
AU - Springholz, G.
AU - Danilov, Sergey N
AU - Khokhlov, Dmitry R
PY - 2021
DA - 2021/11/26 00:00:00
PB - Multidisciplinary Digital Publishing Institute (MDPI)
SP - 3207
IS - 12
VL - 11
PMID - 34947558
SN - 2079-4991
ER -
BibTex |
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BibTex Copy
@article{2021_Galeeva
author = {Alexandra V Galeeva and Dmitry A. Belov and Aleksei S Kazakov and Alexey I Artamkin and Ludmila I. Ryabova and Anton V Ikonnikov and V.V Volobuev and G. Springholz and Sergey N Danilov and Dmitry R Khokhlov},
title = {Photoelectromagnetic effect induced by terahertz laser radiation in topological crystalline insulators pb1−xsnxte},
journal = {Nanomaterials},
year = {2021},
volume = {11},
publisher = {Multidisciplinary Digital Publishing Institute (MDPI)},
month = {nov},
url = {https://doi.org/10.3390%2Fnano11123207},
number = {12},
pages = {3207},
doi = {10.3390/nano11123207}
}
MLA
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MLA Copy
Galeeva, Alexandra V., et al. “Photoelectromagnetic effect induced by terahertz laser radiation in topological crystalline insulators pb1−xsnxte.” Nanomaterials, vol. 11, no. 12, Nov. 2021, p. 3207. https://doi.org/10.3390%2Fnano11123207.
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