Infrared spectroscopy on [Pb(Zn1/3Nb2/3)O3]0.92-[PbTiO3]0.08 and [Pb(Mg1/3Nb2/3)O3]0.71-[PbTio3]0.29] single crystals.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F03%3A00000012" target="_blank" >RIV/46747885:24220/03:00000012 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Infrared spectroscopy on [Pb(Zn1/3Nb2/3)O3]0.92-[PbTiO3]0.08 and [Pb(Mg1/3Nb2/3)O3]0.71-[PbTio3]0.29] single crystals.

Original language description

Far-infrared reflectivity spectra of PZN-PT and PMN-PT single crystals were inversigated between 10 and 530 K, micro/Raman spectra were recorded between 300 and 800 K. No phonon solfening was observed near either of the ferroelectric phase transition. The low-frequency dielectric anomaly in the paraelectric phase is caused by contribution of dynamic polar nanoclusters with the main dispersion in the microwave range. Infrared and Raman spectra confirm the locally doubled unit cell in the paraelectric andferroelectric phases due to the ordering in the perovskite B sites and occurence of polar nanoclusters in paraelectric phase. The lowest-frequency transverse optical phonon mode active in the infrared spectra is underclamped in contrast to the recent results of inelastic neutron scattering, where no TO1 mode could be observed for the wave vectors q. The discrepancy was explain

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

—

Project

—

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2003

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Applid Physics

ISSN

0021-8979

e-ISSN

—

Volume of the periodical

vol. 93

Issue of the periodical within the volume

2, 2003

Country of publishing house

US - UNITED STATES

Number of pages

7

Pages from-to

933-939

UT code for WoS article

—

EID of the result in the Scopus database

—