EVIDENCE FOR A NEW STATE IN ALUMINOSILICATE SPIN-GLASSES IN VERY WEAK MAGNETIC-FIELDS

被引：15

作者：

KRUSINELBAUM, L

RAGHAVAN, R

WILLIAMSON, SJ

机构：

[1] Department of Physics, New York University, New York

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 42卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.42.1762

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dc magnetic susceptibility of CoO•Al2O3•SiO2 (14.3 at.% Co) below Tg=5.7 K decreases markedly with reduction in field for H<150 mOe. The observation of this field sensitivity, equilibrium behavior, and a sharp cusp at Tg in this very weak field range is evidence for a cooperative transition at Tg below which correlations extend over many spins. This state is characterized by an energy scale per spin comparable to that of magnetic dipolar coupling between nearest-neighbor spins. © 1979 The American Physical Society.

引用

页码：1762 / 1765

页数：4

共 27 条

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