Ferromagnetic ordering of Mn diluted into InAs(100) probed by x-ray magnetic circular dichroism

被引：0

作者：

Teodorescu, C. M. ^{[1
]}

Richter, M. C. ^{[1
]}

Hricovini, K. ^{[1
]}

机构：

[1] Univ Cergy Pontoise, Lab Phys Mat & Surfaces, F-95031 Cergy Pontoise, France

来源：

JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2006年 / 8卷 / 03期

关键词：

diluted magnetic semiconductors; manganese; indium arsenide; X-ray magnetic circular dichroism; X-ray absorption;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work reports ferromagnetic ordering of manganese atoms diluted into InAs(100), as seen by X-ray magnetic circular dichroism (XMCD). Room-temperature grown Mn layers on InAs(100) are not magnetic, whereas upon annealing at 250 degrees C, Mn migrates into the semiconductor and exhibits a clear XMCD signal. The net ordered Mn magnetic moment is found to be about 0.7 mu(B) at low temperatures, whereas the Mn atoms are in a state characterized by a local spin of about 2 mu(B). The temperature dependence of the Mn net magnetic moment gives a Curie temperature of more than 150 K, which is higher than the values reported so far for (In,Mn)As and (Ga, Mn)As diluted magnetic semiconductors.

引用

页码：1200 / 1205

页数：6

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