CARRIER-INDUCED BREAKDOWN OF FERROMAGNETISM

被引：30

作者：

DEJONGE, WJM

STORY, T

SWAGTEN, HJM

EGGENKAMP, PJT

机构：

来源：

EUROPHYSICS LETTERS | 1992年 / 17卷 / 07期

关键词：

MAGNETIC PHASE BOUNDARIES; MAGNETIC SEMICONDUCTORS; SPIN GLASSES;

D O I：

10.1209/0295-5075/17/7/010

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetization, susceptibility and specific-heat data for PbSn(Mn)Te and Sn(Mn)Te will be reported for various carrier concentrations. For the first time a carrier-concentration-induced breakdown of a ferromagnetic state has been observed. Based on a simple geometrical argument, a phase diagram for this new transition in RKKY-driven systems will be derived and will be compared with the ferromagnetic-to-spin-glass transition predicted by the well-known Sherrington-Kirkpatrick model.

引用

页码：631 / 636

页数：6

共 22 条

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