Ferroelectric soft mode and microwave dielectric relaxation in BaTiO.sub.3./sub.-PbMg.sub.1/3./sub.Nb.sub.2/3./sub.O.sub.3./sub. ceramics

Bovtun, Viktor; Nuzhnyy, Dmitry; Kempa, Martin; Ostapchuk, Tetyana; Skoromets, Volodymyr; Suchanicz, J.; Czaja, P.; Petzelt, Jan; Kamba, Stanislav

doi:https://dx.doi.org/10.1103/PhysRevMaterials.5.014404

Number of the records: 1

Ferroelectric soft mode and microwave dielectric relaxation in BaTiO.sub.3./sub.-PbMg.sub.1/3./sub.Nb.sub.2/3./sub.O.sub.3./sub. ceramics

1.

SYSNO ASEP	0543053
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Ferroelectric soft mode and microwave dielectric relaxation in BaTiO₃-PbMg_1/3Nb_2/3O₃ ceramics
Author(s)	Bovtun, Viktor (FZU-D)_{RID, ORCID, SAI} Nuzhnyy, Dmitry (FZU-D)_{RID, ORCID} Kempa, Martin (FZU-D)_{RID, ORCID} Ostapchuk, Tetyana (FZU-D)_{RID, ORCID} Skoromets, Volodymyr (FZU-D)_RID Suchanicz, J. (PL) Czaja, P. (PL) Petzelt, Jan (FZU-D)_{RID, ORCID, SAI} Kamba, Stanislav (FZU-D)_{RID, ORCID, SAI}
Number of authors	9
Article number	014404
Source Title	Physical Review Materials. - : American Physical Society - ISSN 2475-9953 Roč. 5, č. 1 (2021)
Number of pages	13 s.
Language	eng - English
Country	US - United States
Keywords	ferroelectrics ; phase transitions ; soft mode ; microwave relaxation
Subject RIV	BM - Solid Matter Physics ; Magnetism
OECD category	Condensed matter physics (including formerly solid state physics, supercond.)
R&D Projects	EF16_019/0000760 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	GF20-20326L GA ČR - Czech Science Foundation (CSF)
Method of publishing	Limited access
Institutional support	FZU-D - RVO:68378271
UT WOS	000607538600003
EID SCOPUS	85100183676
DOI	10.1103/PhysRevMaterials.5.014404
Annotation	BT-100x%PMN, x=0.075, 0.10, 0.15 were studied by the infrared reflectivity, time-domain terahertz transmission and microwave spectroscopies.The spectra show presence of a split soft phonon at all temperatures, similar to that observed in BT and PMN. Microwave dielectric dispersion was observed both below and above temperature of the diffuse permittivity maximum. The relaxations show no PMN-like freezing. So the ceramics cannot be considered as relaxor ferroelectrics, but rather as ferroelectrics with the diffuse phase transition.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2022
Electronic address	https://doi.org/10.1103/PhysRevMaterials.5.014404

Number of the records: 1