Thermodynamic, transport and magnetic properties of α′-NaV2O5

被引：4

作者：

Lohmann, M ^{[1
]}

Hemberger, J ^{[1
]}

Nicklas, M ^{[1
]}

Loidl, A ^{[1
]}

Klemm, M ^{[1
]}

Obermeier, G ^{[1
]}

Horn, S ^{[1
]}

机构：

[1] Univ Augsburg, D-86135 Augsburg, Germany

来源：

PHYSICA B-CONDENSED MATTER | 1999年 / 259-61卷

关键词：

spin-Peierls transition; transport properties; electron spin resonance;

D O I：

10.1016/S0921-4526(98)00843-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report on heat capacity, electrical resistance and electron spin resonance experiments on alpha'-NaV2O5. At the phase transition temperature, the specific heat anomaly which can hardly be described within the framework of a spin-Peierls transition and a large anomaly in the electrical resistance reveal that the lattice degrees of freedom are strongly involved. ESR results were obtained from 4 to 700 K. The spin susceptibility at high temperatures closely follows a Bonner-Fisher behaviour, with an exchange constant of J = 578 K, but differs significantly from this theory at lower temperatures. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

收藏

页码：983 / 984

页数：2

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