Magnetic phase transition in KDy(WO4)2 single crystal

被引：23

作者：

Borowiec, MT

Dyakonov, VP

Jedrzejczak, A

Markovich, VI

Pavlyuk, AA

Szymczak, J

Zubov, E

Zaleski, M

机构：

[1] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

[2] Ukrainian Acad Sci, Inst Physicotech, UA-340114 Donetsk, Ukraine

[3] Russian Acad Sci, Inst Inorgan Chem, Novosibirsk, Russia

来源：

PHYSICS LETTERS A | 1998年 / 243卷 / 1-2期

关键词：

KDy(WO4)(2); specific heat; phase transition; exchange parameter;

D O I：

10.1016/S0375-9601(98)00178-9

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetic phase transition in the KDy(WO4)(2) single crystal has been first studied using the temperature dependence of the specific heat in a magnetic field. The ordering temperature of the Dy3+ sublattice was established to be T-N = 0.60 +/- 0.02 K. The specific heat data are indicative of the antiferromagnetic character of Dy3+ ions' interactions in the ac plane. The value of the effective interaction parameter J/k was estimated. A part of the entropy is shown to be released at and above the transition temperature only. The temperature dependence of the specific heat above and below T-N is discussed in the frameworks of the theoretical 2D and 3D Ising and XY models. (C) 1998 Elsevier Science B.V.

引用

页码：85 / 90

页数：6

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