Polar lattice vibrations and phase transition dynamics in Pb(Zr1-xTix)O3.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F11%3A00368188" target="_blank" >RIV/68378271:_____/11:00368188 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevB.84.184302" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.84.184302</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.84.184302" target="_blank" >10.1103/PhysRevB.84.184302</a>
Alternative languages
Result language
angličtina
Original language name
Polar lattice vibrations and phase transition dynamics in Pb(Zr1-xTix)O3.
Original language description
Infrared (IR) reflectivity spectra of nominally pure Pb(Zr1-xTix)O3 ceramics with different Ti/Zr concentration (x = 0.42 ? 0.58) were measured and evaluated along with the time-domain THz transmittance spectra in the temperature range 10 ? 900 K. The temperature dependence of the low-frequency vibrations, related to Pb atoms, was analyzed in terms of two overdamped modes ?a soft mode and an anharmonic hopping central mode? in the cubic and high-temperature ferroelectric phase, and three main vibrationsin the low-temperature ferroelectric phase with the doubled unit cell: two E-symmetry modes (the soft mode and a mode corresponding to anti-phase vibrations of neighbouring Pb atoms in the THz range), and the antiferrodistortive mode producing the anti-phase tilts of the oxygen octahedra. The last bare mode is not IR active, but it becomes activated by coupling with the soft mode.
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%2F10%2F0616" target="_blank" >GAP204/10/0616: Modern piezoelectric perovskites: lattice vibrations and domain walls</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
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
12
Pages from-to
"184302/1"-"184302/12"
UT code for WoS article
000297100900005
EID of the result in the Scopus database
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