Applied Surface Science, volume 541, pages 148490
Impact of ordering on the reactivity of mixed crystals of topological insulators with anion substitution: Bi2 SeTe2 and Sb2 SeTe2
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Fritz Haber Institut der Max Planck Gesellschaft, Faradayweg 4–6, 14195 Berlin, Germany
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Helmholtz-Zentrum Berlin, Albert-Einstein-Str. 15, D-12489 Berlin, Germany
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Publication type: Journal Article
Publication date: 2021-03-01
Journal:
Applied Surface Science
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 6.7
ISSN: 01694332
Surfaces, Coatings and Films
General Chemistry
General Physics and Astronomy
Condensed Matter Physics
Surfaces and Interfaces
Abstract
Three-dimensional topological insulators are exotic materials with unique properties. Tetradymite type binary chalcogenides of bismuth and antimony, as well as their mixed crystals, belong to prototypical TIs. Potential device applications of these materials require in-depth knowledge of their stability in the ambient atmosphere and other media maintained during their processing. Here we investigated the reactivity of mixed crystals with anion substitution, Bi2(Se1-xTex)3 and Sb2(Se1-xTex)3, towards molecular oxygen using both in situ and ex situ X-ray photoelectron spectroscopy. The results indicate that, in contrast to cation substitution, partial substitution of tellurium by selenium atoms leads to anomalously high surface reactivity, which even exceeds that of the most reactive binary constituent. We attribute this effect to anion ordering that essentially modifies the bond geometry, especially the respective bond angles as modeled by DFT.
Citations by journals
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Materials Letters
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Materials Letters
1 publication, 100%
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Citations by publishers
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Elsevier
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Elsevier
1 publication, 100%
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Volykhov A. A. et al. Impact of ordering on the reactivity of mixed crystals of topological insulators with anion substitution: Bi2SeTe2 and Sb2SeTe2 // Applied Surface Science. 2021. Vol. 541. p. 148490.
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Volykhov A. A., Frolov A. S., Neudachina V. S., Vladimirova N. V., Gerber E., Callaert C., Hadermann J., Khmelevsky N. O., Knop-Gericke A., Sánchez-Barriga J., Yashina L. V. Impact of ordering on the reactivity of mixed crystals of topological insulators with anion substitution: Bi2SeTe2 and Sb2SeTe2 // Applied Surface Science. 2021. Vol. 541. p. 148490.
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TY - JOUR
DO - 10.1016/j.apsusc.2020.148490
UR - https://doi.org/10.1016%2Fj.apsusc.2020.148490
TI - Impact of ordering on the reactivity of mixed crystals of topological insulators with anion substitution: Bi2SeTe2 and Sb2SeTe2
T2 - Applied Surface Science
AU - Volykhov, Andrey A.
AU - Frolov, Alexander S
AU - Neudachina, Vera S.
AU - Vladimirova, Nadezhda V
AU - Gerber, Evgeny
AU - Callaert, Carolien
AU - Hadermann, Joke
AU - Khmelevsky, Nikolay O.
AU - Knop-Gericke, Axel
AU - Sánchez-Barriga, J.
AU - Yashina, Lada V.
PY - 2021
DA - 2021/03/01 00:00:00
PB - Elsevier
SP - 148490
VL - 541
SN - 0169-4332
ER -
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@article{2021_Volykhov,
author = {Andrey A. Volykhov and Alexander S Frolov and Vera S. Neudachina and Nadezhda V Vladimirova and Evgeny Gerber and Carolien Callaert and Joke Hadermann and Nikolay O. Khmelevsky and Axel Knop-Gericke and J. Sánchez-Barriga and Lada V. Yashina},
title = {Impact of ordering on the reactivity of mixed crystals of topological insulators with anion substitution: Bi2SeTe2 and Sb2SeTe2},
journal = {Applied Surface Science},
year = {2021},
volume = {541},
publisher = {Elsevier},
month = {mar},
url = {https://doi.org/10.1016%2Fj.apsusc.2020.148490},
pages = {148490},
doi = {10.1016/j.apsusc.2020.148490}
}