Soft mode in cubic PbTiO3 by hyper-Raman scattering
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F13%3A00391662" target="_blank" >RIV/68378271:_____/13:00391662 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevB.87.064101" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.87.064101</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.87.064101" target="_blank" >10.1103/PhysRevB.87.064101</a>
Alternative languages
Result language
angličtina
Original language name
Soft mode in cubic PbTiO3 by hyper-Raman scattering
Original language description
Hyper-Raman scattering experiments allowed collecting the spectra of the lowest $F_{1u}$-symmetry mode of PbTiO.3. crystal in the paraelectric phase up to $/approx$ 930 K as well as down to about 1 K above the phase transition. It is realized that this mode is fully responsible for the Curie-Weiss behavior of its dielectric permittivity above T.c.. Near the phase transition, this phonon frequency softens down to 17 cm.-1. and its spectrum can be well modeled as a response of a single damped harmonic oscillator. It is concluded that PbTiO.3. constitutes a clean example of a soft-mode-driven ferroelectric system.
Czech name
—
Czech description
—
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
—
Result continuities
Project
<a href="/en/project/ME08109" target="_blank" >ME08109: Dynamical nanoclusters in polar perovskite materials</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2013
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
—
Volume of the periodical
87
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
4
Pages from-to
"064101-1"-"064101-4"
UT code for WoS article
000314681700003
EID of the result in the Scopus database
—