Optical birefringence in the incommensurate phase of {N(CH3) 4}2ZnCl4
- 1 January 1982
- journal article
- Published by EDP Sciences in Journal de Physique Lettres
- Vol. 43 (10) , 333-338
- https://doi.org/10.1051/jphyslet:019820043010033300
Abstract
The optical birefringence of { N(CH3)4 }2ZnCl 4 has been measured. Below T0, the exponent of its temperature dependence is identified to 2 - α - Φ = 0.87 ± 0.02. The lock-in transition is observed, exhibiting an hysteresis of about 0.25°. These data are compared with the predictions of Mashiyama's theoryKeywords
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