Theoretical modelling of infrared spectra of the twinned lead zirconate
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F17%3A00305274" target="_blank" >RIV/68407700:21340/17:00305274 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1080/01411594.2016.1202409" target="_blank" >https://doi.org/10.1080/01411594.2016.1202409</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/01411594.2016.1202409" target="_blank" >10.1080/01411594.2016.1202409</a>
Alternative languages
Result language
angličtina
Original language name
Theoretical modelling of infrared spectra of the twinned lead zirconate
Original language description
The THz-frequency range dispersion of the complex dielectric permittivity tensor of antiferroelectric lead zirconate, associated with its multiple weak infrared active phonon modes, is modelled by the oscillator formula with parameters fully determined from the recently developed atomistic shell model. The resulting realistic dielectric function is used to estimate the far-infrared reflectivity spectra of a twinned lead zirconate crystal in the limit of narrow and wide domains. It is shown that in case of the sufficiently narrow domain widths, the effective-medium average permittivity shows additional modes identified as geometric resonances (i.e. extraneous excitations created by material interfaces), possibly distinguishable in suitable experiments.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Phase Transitions
ISSN
0141-1594
e-ISSN
1029-0338
Volume of the periodical
90
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
17-23
UT code for WoS article
000394604300003
EID of the result in the Scopus database
2-s2.0-84978954607