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External and Internal Strains in Piezoelectric Crystals
Author(s) -
Munn R. W.
Publication year - 1981
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.2221040135
Subject(s) - piezoelectricity , electric field , constant (computer programming) , condensed matter physics , field (mathematics) , internal stress , crystal (programming language) , materials science , physics , mathematics , composite material , quantum mechanics , pure mathematics , computer science , programming language
A generalized thermodynamic theory is used to give expressions for the internal strains induced in piezoelectric crystals for given external strains produced either at constant stress or at constant electric field; only certain combinations of strains can be produced by electric fields. Previous results for the zinc blende structure are shown to follow from the general treatment, which is readily applied to any crystal structure or microscopic model.