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Electric Critical Point in Barium Titanate Single Crystals
Author(s) -
Zvirgzde J. V.,
Zvirgzd J. A.
Publication year - 1974
Publication title -
kristall und technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0023-4753
DOI - 10.1002/crat.19740091212
Subject(s) - barium titanate , electric field , condensed matter physics , jump , materials science , phase transition , tetragonal crystal system , critical point (mathematics) , intensity (physics) , volume (thermodynamics) , phase (matter) , optics , physics , dielectric , thermodynamics , optoelectronics , mathematics , quantum mechanics , geometry
The present paper considers the results of an experimental investigation of the volume jump Δ V and the light scattering by Barium Titanate single crystal as a function of the external electric field E and the temperature T in a narrow region of the tetragonal‐cubic phase transition. It has first been established through X‐ray and optical investigations that the same characteristic phenomena accompany the critical point for BaTi0 3 , using an applied electric field in the capacity generalized force, and the critical point of other systems, i.e. a monotonous decrease in the volume jump between the two crystaline phases and an abrupt increase in the intensity of the scattered light.