FLUCTUATION EFFECT ON THE LINEAR BIREFRINGENCE BEHAVIOR NEAR THE NORMAL - INCOMMENSURATE PHASE-TRANSITION OF A(2)BX(4) TYPE CRYSTALS

Authors
KIM DY YOON JG KWUN SI
Citation
Dy. Kim et al., FLUCTUATION EFFECT ON THE LINEAR BIREFRINGENCE BEHAVIOR NEAR THE NORMAL - INCOMMENSURATE PHASE-TRANSITION OF A(2)BX(4) TYPE CRYSTALS, Journal of the Physical Society of Japan, 67(3), 1998, pp. 903-906
Citations number
26
Categorie Soggetti
Physics
Journal title
Journal of the Physical Society of Japan → ACNP
ISSN journal
00319015
Volume
67
Issue
3
Year of publication
1998
Pages
903 - 906
Database
ISI
SICI code
0031-9015(1998)67:3<903:FEOTLB>2.0.ZU;2-Y
Abstract
Linear birefringence behavior of Rb2ZnCl4, K2ZnCl4, and [N(CH3)(4)](2) ZnCl4 were studied in the critical region of the normal-incommensurate phase transition. Existence of linear birefringence tail above the tr ansition temperature was observed. It was ascribed to the fluctuation effect on the linear birefringence. Results of scaling analysis imply that the exponent of LB behavior is not 1 - alpha but 2 beta, contrary to the previous LB study. Contribution of the fluctuation to linear b irefringence behavior is discussed comparing to XRD experiments.