Soft-mode-driven lattice instabilities in Cs2HgCl4 crystal: phenomenological treatment and far-infrared spectroscopy of the structurally modulated phases
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00379177" target="_blank" >RIV/68378271:_____/12:00379177 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/0953-8984/24/24/245901" target="_blank" >http://dx.doi.org/10.1088/0953-8984/24/24/245901</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/0953-8984/24/24/245901" target="_blank" >10.1088/0953-8984/24/24/245901</a>
Alternative languages
Result language
angličtina
Original language name
Soft-mode-driven lattice instabilities in Cs2HgCl4 crystal: phenomenological treatment and far-infrared spectroscopy of the structurally modulated phases
Original language description
Our theoretical analysis shows that the lattice instabilities along the a and c crystallographic directions are related to low-frequency transverse optical phonon branches of Sigma 2 and Lambda 3 symmetry, respectively, coupling of the TO and transverseacoustic (TA) modes of Lambda 3 symmetry causes, at somewhat lower temperatures, a series of frozen modulated commensurate and incommensurate states developing along the symmetric Lambda direction. The process of activation of both the Raman- and the IR-active phonons in the structurally modulated phases is subjected to the phenomenological analysis.
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
<a href="/en/project/GAP204%2F12%2F1163" target="_blank" >GAP204/12/1163: Phonon and dielectric spectroscopy of multiferroics</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physics-Condensed Matter
ISSN
0953-8984
e-ISSN
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Volume of the periodical
24
Issue of the periodical within the volume
24
Country of publishing house
GB - UNITED KINGDOM
Number of pages
15
Pages from-to
1-15
UT code for WoS article
000304874900028
EID of the result in the Scopus database
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