Magnetic phase diagram of Pb1-x-ySnyMnxTe semimagnetic semiconductors

被引：46

作者：

Lazarczyk, P

Story, T

Arciszewska, M

Galazka, RR

机构：

[1] Institute of Physics, Polish Academy of Sciences, 02-668 Warsaw

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1997年 / 169卷 / 1-2期

关键词：

semimagnetic semiconductors; diluted magnetic semiconductors; IV-VI compounds; exchange interactions; magnetic phase transitions;

D O I：

10.1016/S0304-8853(96)00720-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic susceptibility and Hall effect in Pb1-x-ySnyMnxTe semimagnetic semiconductor with 0.03 less than or equal to x less than or equal to 0.12 were investigated as a function of carrier concentration. At low temperatures a ferromagnetic phase was observed in the samples with a high carrier concentration. The dependence of the Curie temperature T-c on the carrier concentration p has a threshold-like character for all investigated samples. The threshold hole concentration depends on the Mn content and decreases with increasing concentration of manganese ions. The results are summarized in the form of T-c(x, p) magnetic phase diagram.

引用

页码：151 / 158

页数：8

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