2ND-ORDER JAHN-TELLER EFFECT IN CDPS3 AND ZNPS3 DEMONSTRATED BY A NONHARMONIC BEHAVIOR OF CD2+ AND ZN2+ D(10) IONS

被引：52

作者：

BOUCHER, F ^{[1
]}

EVAIN, M ^{[1
]}

BREC, R ^{[1
]}

机构：

[1] IMN,CHIM SOLIDE LAB,F-44072 NANTES 03,FRANCE

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1994年 / 215卷 / 1-2期

关键词：

D O I：

10.1016/0925-8388(94)90819-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The X-ray single-crystal structures of two MPS(3) compounds (M=Cd and Zn) are revisited. A model with a nonharmonic development of the temperature factor is used to understand the origin of the large atomic displacement parameters of the Cd2+ and Zn2+ d(10) ions. With the introduction of fourth-order tensors, the existence of a static, resolved disorder is clearly demonstrated for Cd2+ in CdPS3. A similar disorder, although not resolved, is also observed for Zn2+ in ZnPS3. It is shown that the distortion of the (MS(6)) octahedra may be attributed to a second-order Jahn-Teller effect.

引用

页码：63 / 70

页数：8

共 24 条

[1]

BARJ M, 1988, EUR J SOL STATE INOR, V25, P449

[2] RELATIONSHIP BETWEEN STRUCTURE PARAMETERS AND CHEMICAL-PROPERTIES IN SOME MPS3 LAYERED PHASES [J].