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Lattice Dynamics of Barium Titanate: Single Crystal, Ceramic, and Polycrystalline Film
Author(s) -
Maslova Olga Aleksandrovna,
Yuzyuk Yuri Ivanovich,
Jain Menka,
Barannikova Svetlana Aleksandrovna
Publication year - 2020
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201900762
Subject(s) - crystallite , barium titanate , materials science , raman spectroscopy , ceramic , crystal structure , single crystal , lattice (music) , mineralogy , crystallography , composite material , optics , metallurgy , chemistry , physics , acoustics
A comparative analysis of Raman spectra of barium titanate in various forms is performed over a broad range of temperatures (from 80 to 400 K). In particular, the evolution of A 1 (2TO) and E (1TO) soft‐mode components, sensitive to strain, is monitored for such materials as single crystal, ceramic, and polycrystalline film. Based on the temperature dependence of these components, a sequence of phase transitions is established for each of the aforementioned forms.