Jahn-Teller type structural transition in KDy(WO4)(2)

被引：21

作者：

Borowiec, MT

Dyakonov, V

Jedrzejczak, A

Markovich, V

Nabialek, A

Pavlyuk, A

Piechota, S

Prokhorov, A

Szymczak, H

机构：

[1] UKRAINIAN ACAD SCI,DONETSK PHYSICOTECH INST,UA-340114 DONETSK,UKRAINE

[2] RUSSIAN ACAD SCI,INST INORGAN CHEM,NOVOSIBIRSK 630090,RUSSIA

来源：

SOLID STATE COMMUNICATIONS | 1997年 / 102卷 / 08期

关键词：

KDy(WO4)(2); ESR; specific heat; phase transition; Jahn-Teller effect;

D O I：

10.1016/S0038-1098(97)00038-0

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The low temperature structural phase transition in the KDy(WO4)(2) single crystal has been first studied by means of both ESR method and specific heat C(T). A broad maximum of C(T) with peak at T-c = 6.38 K and lambda-shaped temperature dependence of the ESR line width LVI(T) in the vicinity of transition may be explained as being due to the structural phase transition caused by the interaction of the electronic states of Dy ions with the lattice vibrations. An analysis of C(T) and Delta H(T) dependencies show that the second order structural phase transition is the transition of Jahn-Teller type and does not occur with a change of point symmetry. (C) 1997 Elsevier Science Ltd.

引用

页码：627 / 630

页数：4

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