Structural and vibrational study of Bi2Se3 under high pressure
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F11%3A39895556" target="_blank" >RIV/00216275:25310/11:39895556 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevB.84.184110" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.84.184110</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.84.184110" target="_blank" >10.1103/PhysRevB.84.184110</a>
Alternative languages
Result language
angličtina
Original language name
Structural and vibrational study of Bi2Se3 under high pressure
Original language description
The structural and vibrational properties of bismuth selenide (Bi2Se3) have been studied by means of x-ray diffraction and Raman scattering measurements up to 20 and 30 GPa, respectively. The measurements have been complemented with ab initio total-energy and lattice dynamics calculations. Our experimental results evidence a phase transition from the low-pressure rhombohedral (R-3m) phase (alfa-Bi2Se3) with sixfold coordination for Bi to a monoclinic C2/m structure (beta-Bi2Se3) with sevenfold coordination for Bi above 10 GPa. The equation of state and the pressure dependence of the lattice parameters and volume of alfa and beta phases of Bi2Se3 are reported. Furthermore, the presence of a pressure-induced electronic topological phase transition in alfa-Bi2Se3 is discussed. Raman measurements evidence that Bi2Se3 undergoes two additional phase transitions around 20 and 28 GPa, likely toward a monoclinic C2/c and a disordered body-centered cubic structure with 8-fold and 9- or 10-fold c
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review B
ISSN
1098-0121
e-ISSN
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Volume of the periodical
84
Issue of the periodical within the volume
18
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
"184110-1"-"184110-15"
UT code for WoS article
000297414000005
EID of the result in the Scopus database
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