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Infrared, terahertz, and microwave spectroscopy of the soft and central modes in Pb(Mg.sub.1/3./sub.Nb.sub.2/3./sub.)O.sub.3./sub.
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SYSNO ASEP 0483352 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Infrared, terahertz, and microwave spectroscopy of the soft and central modes in Pb(Mg1/3Nb2/3)O3 Author(s) Nuzhnyy, Dmitry (FZU-D) RID, ORCID
Petzelt, Jan (FZU-D) RID, ORCID, SAI
Bovtun, Viktor (FZU-D) RID, ORCID, SAI
Kempa, Martin (FZU-D) RID, ORCID
Kamba, Stanislav (FZU-D) RID, ORCID, SAI
Hlinka, Jiří (FZU-D) RID, ORCID
Hehlen, B. (FR)Number of authors 7 Article number 174113 Source Title Physical Review B. - : American Physical Society - ISSN 2469-9950
Roč. 96, č. 17 (2017), s. 1-13Number of pages 13 s. Language eng - English Country US - United States Keywords relaxor ferroelectrics ; soft mode ; polar nanodomains Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects LD15014 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA15-04121S GA ČR - Czech Science Foundation (CSF) Institutional support FZU-D - RVO:68378271 UT WOS 000416233500002 EID SCOPUS 85039162730 DOI 10.1103/PhysRevB.96.174113 Annotation From the infrared reflectivity and time-domain terahertz spectra combined with available high-frequency dielectric data above the megahertz range in a broad temperature range of 10 to 900 K, a full picture of the soft- and central-mode behavior in the classical relaxor ferroelectric Pb(Mg1/3Nb2/3)O3 is suggested.The response perpendicular to the local dipole moment, at high temperatures induced by random fields, undergoes a classical softening from high temperatures with permittivity obeying the Curie-Weiss law, ε=C/(T - TC), with TC=380 K, whereas the response parallel to it shows no softening.
Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2018
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