THE FARADAY-EFFECT NEAR THE FERROELASTIC PHASE-TRANSITION OF LEAD PHOSPHATE, PB-3(PO4)(2)

被引：1
作者：
KAMINSKY, W
BISMAYER, U
机构：
[1] UNIV HANNOVER,INST MINERAL,W-3000 HANNOVER,GERMANY
[2] UNIV HANNOVER,SFB 173,W-3000 HANNOVER,GERMANY
来源：
PHASE TRANSITIONS | 1993年 / 46卷 / 01期
关键词：
FARADAY EFFECT; FERROELASTIC PHASE TRANSITION; LEAD PHOSPHATE;
D O I：
10.1080/01411599308200312
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The Faraday effect and the absolute variation of the index ellipsoid of Pb-3(PO4)(2) were studied between 415 K and 460 K near the ferroelastic transition point (453 K). The experimental findings are in good agreement with the three-component order-parameter model leading to a nearly tricritical transition. A significant anomaly in the Faraday rotation and the birefringence (n'(3) - n(1)) near 430 K is observed indicating a different temperature evolution of the excess volume compared with the symmetry breaking parameters which follow (n(2) - n(1)).
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页码：41 / 46
页数：6
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