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”︁Four‐fold„ refringence in quartz
Author(s) -
Semenchenko † V. K.,
Bodnar I. T.,
Isupov V. A.
Publication year - 1983
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170180313
Subject(s) - quartz , phase transition , optics , physics , chemistry , thermodynamics , materials science , condensed matter physics , composite material
An attempt is made to interprete the simultaneous existence of four refractive indexes (two ordinary and two extraordinary) near the α—β phase transition in quartz from the optical point of view. The theory of thermodynamical stability predicts the appearance of fluctuation areas of the α‐ and β‐phases in the vicinity of the α—β transition. On the basis of this theory the formation of infinite clusters, consisting of the merged fluctuation ranges, is assumed.