MAGNETIZATION AND PHOTOMAGNETIC EFFECTS IN DILUTED MAGNETIC MICROCRYSTALLINE CD1-XMNXTE

被引：1

作者：

HE, XF ^{[1
]}

KOTLICKI, A ^{[1
]}

DOSANJH, P ^{[1
]}

TURRELL, BG ^{[1
]}

CAROLAN, JF ^{[1
]}

JIMENEZSANDOVAL, S ^{[1
]}

LOZANOTOVAR, P ^{[1
]}

机构：

[1] IPN,CTR INVEST & ESTUDIOS AVANZADOS,DEPT FIS,MEXICO CITY 07000,DF,MEXICO

来源：

SUPERLATTICES AND MICROSTRUCTURES | 1993年 / 14卷 / 04期

关键词：

MAGNETIZATION; PHOTOMAGNETIZATION; MICROCRYSTALLINE; CD1-XMNXTE;

D O I：

10.1006/spmi.1993.1136

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have investigated the magnetic and photomagnetic properties of microcrystalline Cd1-xMnxTe prepared by rf sputtering. Magnetization measurements were carried out using an rf SQUID magnetometer in the temperature range of 1.8 to 300 K at various magnetic fields up to 5.5 T. For temperatures above 40 K, the sample showed Curie-Weiss behaviour with a Curie temperature indicating predominantly antiferromagnetic interactions. A spin-glass phase transition was also observed. Photomagnetization measurements were performed using a fibre-optic system. The light was shone onto the sample utilizing an optical fibre and the subsequent change in the magnetization was sensed by the SQUID. Photo-induced magnetization was observed when the sample was illuminated by unpolarized light. Our results enable qualitative and quantitative conclusions to be drawn on the magnetic behaviour and the interplay between optical and magnetic properties of the diluted magnetic microcrystalline semiconductors.

引用

页码：261 / 263

页数：3

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