Multiple soft-mode vibrations of lead zirconate
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00431548" target="_blank" >RIV/68378271:_____/14:00431548 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevLett.112.197601" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.112.197601</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.112.197601" target="_blank" >10.1103/PhysRevLett.112.197601</a>
Alternative languages
Result language
angličtina
Original language name
Multiple soft-mode vibrations of lead zirconate
Original language description
Polarized Raman, IR, and time-domain THz spectroscopy of orthorhombic lead zirconate single crystals have yielded a comprehensive picture of temperature-dependent quasiharmonic frequencies of its low-frequency phonon modes. It is argued that these modesprimarily involve vibrations of Pb ions and librations of oxygen octahedra. Their relation to phonon modes of the parent cubic phase is proposed. Count of the observed IR and Raman active modes belonging to distinct irreducible representations agree quite well with group-theory predictions. Analysis of the results yields insight into the phase transition mechanism, involving a soft ferroelectric branch coupled by a trilinear term to another two oxygen octahedra tilt modes.
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/GA13-15110S" target="_blank" >GA13-15110S: High-frequency dielectric dispersion in ferroelectric perovskites: fundamental studies within advanced approaches</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
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 Letters
ISSN
0031-9007
e-ISSN
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Volume of the periodical
112
Issue of the periodical within the volume
19
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
"197601-1"-"197601-5"
UT code for WoS article
000335918900011
EID of the result in the Scopus database
2-s2.0-84900451912