OPTICAL-ACTIVITY AND BIREFRINGENCE OF THE INCOMMENSURATE PHASE OF RB2ZNBR4

被引：16

作者：

KOBAYASHI, J ^{[1
]}

SAITO, K ^{[1
]}

TAKAHASHI, N ^{[1
]}

KAMIYA, I ^{[1
]}

机构：

[1] RES DEV CORP JAPAN,CHIYODA KU,TOKYO 100,JAPAN

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.49.6539

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The high-accuracy universal polarimeter (HAUP) opened a way for revealing optical activity in incommensurate phases of several A2BX4-type crystals. Ortega, Etxebarria, Breczewski, and Tello found recently that a gyration tensor component g23 of Rb2ZnBr4, which had been reported by Meekes and Janner to appear in the incommensurate phase, vanished. They drew the conclusion that the incommensurate phase of this material lacked optical activity. In order to review these controversial results, we made a critical study of all the components g(ij) of Rb2ZnBr4 by using the refined HAUP. It was. found that the component g23 of Rb2ZnBr4 clearly appeared at the incommensurate transition point and increased conspicuously with decreasing temperature. Therefore the incommensurate phase of Rb2ZnBr4 was found to be optically active.

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页码：6539 / 6547

页数：9

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