BIREFRINGENCE STUDY OF THE 415-K PHASE-TRANSITION IN KSCN

被引：9

作者：

FUITH, A ^{[1
]}

KROUPA, J ^{[1
]}

机构：

[1] CZECHOSLOVAK ACAD SCI, INST PHYS, CS-1820 PRAGUE 8, CZECHOSLOVAKIA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1990年 / 2卷 / 10期

关键词：

D O I：

10.1088/0953-8984/2/10/003

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

KSCN shows an order-disorder phase transition at 415 K. Accurate measurements of the birefringence in the temperature range from room temperature to 420 K support the validity of the Ising model with volume-dependent interactions. The temperature dependence of the birefringence is well correlated with the structural changes as predicted by the theoretical model. The model parameters obtained and the existence of a thermal hysteresis of about 0.5 K demonstrate the first-order character of the phase transition.

引用

页码：2355 / 2359

页数：5

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