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Growth defects in barium‐strontium niobate crystals
Author(s) -
Abramov N. A.,
Ivleva L. I.,
Kuz'minov Yu. S.,
Myzina V. A.,
Polozkov N. M.
Publication year - 1977
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.19770121106
Subject(s) - strontium barium niobate , barium , materials science , strontium , crystal (programming language) , indentation hardness , crystal growth , perpendicular , isotropic etching , crystal structure , mineralogy , crystallography , etching (microfabrication) , composite material , optoelectronics , chemistry , metallurgy , microstructure , ferroelectricity , dielectric , organic chemistry , mathematics , layer (electronics) , computer science , programming language , geometry
The paper is concerned with the results of investigation of barium‐strontium niobate chemical composition change, of the lattice parameter, microhardness of the crystal region. Analysis reveals the increase of the barium content up to 4% and the change of the crystal lattice parameter by 10 −3 Å, leading to considerable tensions and crystal cracking. The etching of the slides perpendicular to the growth axis has been realized as well as the decoration of the fresh cleavages by anthraquinone vapours which indicate the electric inhomogenity in the crystal volume.