Acoustic phonons in unfilled tetragonal tungsten-bronze crystals

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00494887" target="_blank" >RIV/68378271:_____/18:00494887 - isvavai.cz</a>

Alternative codes found

RIV/61388998:_____/18:00494887

Result on the web

<a href="http://dx.doi.org/10.1080/01411594.2018.1499914" target="_blank" >http://dx.doi.org/10.1080/01411594.2018.1499914</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/01411594.2018.1499914" target="_blank" >10.1080/01411594.2018.1499914</a>

Result language

angličtina

Original language name

Acoustic phonons in unfilled tetragonal tungsten-bronze crystals

Original language description

We have studied several unfilled tetragonal tungsten-bronze crystals (SBN-35, CBN-28, CBN-30, CBN-32) by differential scanning calorimetry, Brillouin spectroscopy and piezoresponse-force microscopy. The Brillouin backscattering configuration in the c-plates revealed the longitudinal acoustic phonon, which has a frequency near 50 GHz and displays softening when approaching the phase transition in all crystals. The ferroelectric domain structure and the domain size are dependent on the Sr/Ba or Ca/Ba ratios, and on the occupation rate in the channels as shown by the piezoresponse-force microscopy images. A splitting of the longitudinal acoustic phonon was found in SBN-35 in the multidomain sample, but poling of the crystal removed this splitting and just left the phonon with higher frequency.n

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

<a href="/en/project/GA16-09142S" target="_blank" >GA16-09142S: Lattice dynamics and dielectric response of tetragonal tungsten-bronze oxides</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

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

Name of the periodical

Phase Transitions

ISSN

0141-1594

e-ISSN

—

Volume of the periodical

91

Issue of the periodical within the volume

9-10

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

976-983

UT code for WoS article

000446595600008

EID of the result in the Scopus database

2-s2.0-85050336880