Optical activity of ferroelectric Rb2ZnCl4
- 1 July 1988
- journal article
- research article
- Published by Taylor & Francis in Phase Transitions
- Vol. 12 (3), 225-233
- https://doi.org/10.1080/01411598808207511
Abstract
The incommensurate phase of Rb2ZnCl4, one of the A2BX4 family crystals which exhibits incommensurate phase transitions before becoming ferroelectric or ferroelastic, is found to be optically active, i.e., g 23 = 3.2 × 10−6 at 1°C. The temperature dependence of g 23 indicates that the nature of the optical activity of Rb2ZnCl4 is classified in the same group as that of [N(CH3)4]2ZnCl4. However, the maximum value of g 23 of this crystal is approximately one order of magnitude larger than that of [N(CH3)4]2ZnCl4. This phenomenon is discussed briefly.Keywords
This publication has 7 references indexed in Scilit:
- Improvement of the accuracy of HAUP, high-accuracy universal polarimeter: application to ferroelectric [N(CH3)4]ZnCl4Journal of Applied Crystallography, 1986
- Optical activity in the incommensurate phase of ferroelectric {N(CH3)4}2ZnCl4.Proceedings of the Japan Academy, Series B, 1986
- Optical and x-ray studies on incommensurate phase transitions of ferroelectric ammonium fluoroberyllate (Physical Review B, 1985
- A new optical method and apparatus `HAUP' for measuring simultaneously optical activity and birefringence of crystals. I. Principles and constructionJournal of Applied Crystallography, 1983
- Neutron Scattering Study on the Incommensurate Phases in Ferroelectric Rb2ZnCl4 and K2ZnCl4Journal of the Physics Society Japan, 1979
- Ferroelectricity in {N(CH3)4}2ZnCl4Journal of the Physics Society Japan, 1978
- Ferroelectricity in Rb2ZnCl4Journal of the Physics Society Japan, 1977