Open AccessПолучение, структура и диэлектрические характеристики монокристаллов и тонких пленок Sr-=SUB=-0.61-=/SUB=-Ba-=SUB=-0.39-=/SUB=-Nb-=SUB=-2-=/SUB=-O-=SUB=-6-=/SUB=-
Author(s) -
А. В. Павленко,
Л. И. Ивлева,
Д.В. Стрюков,
Alessandro Kovtun,
А. С. Анохин,
P. A. Lykov
Publication year - 2019
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2019.02.47140.217
Subject(s) - tetragonal crystal system , materials science , dielectric , permittivity , condensed matter physics , crystal structure , lattice (music) , phase transition , dielectric permittivity , analytical chemistry (journal) , crystallography , mineralogy , chemistry , physics , optoelectronics , chromatography , acoustics
The structure, lattice dynamics, and dielectric characteristics of Sr_0.61Ba_0.39Nb_2O_6 (SBN-61) single crystals and SBN-61/(001)MgO thin films have been studied. The analysis of temperature and frequency dependences of permittivity and dielectric loss tangents in a range of 10–500 K for a SBN-61 crystal has allowed one to establish the phase transition temperatures. The SBN-61/(001)MgO films are found to possess the tetragonal symmetry, characteristic of a SBN-61 crystal, but their lattice parameters are different from the latter.