MAGNETOCALORIC INVESTIGATION OF (H, T) PHASE-DIAGRAM OF CUMN SPIN-GLASS

被引：59

作者：

BERTON, A ^{[1
]}

CHAUSSY, J ^{[1
]}

ODIN, J ^{[1
]}

RAMMAL, R ^{[1
]}

TOURNIER, R ^{[1
]}

机构：

[1] CNRS,ELECTROTECH LAB,ERA 534,F-38042 GRENOBLE,FRANCE

来源：

JOURNAL DE PHYSIQUE LETTRES | 1982年 / 43卷 / 05期

关键词：

MAGNETIC MATERIALS - Paramagnetism;

D O I：

10.1051/jphyslet:01982004305015300

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetocaloric effect was used to determine the phase diagram (H,T) of a CuMn spin glass. The results suggest the presence of two lines: the spin glass-paramagnetic boundary line H//c(T) and a crossover line H//m(T) separating a pure Curie paramagnetic from a non-Curie paramagnet. The data obtained for the derivative obey a scaling law and give an estimation of the critical exponent gamma //2 different from its ″mean field″ value.

引用

页码：L153 / L158

页数：6

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