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arXiv · 0711.0241

Evidence for the intrinsic ferromagnetism of semiconductor (Ga,Cr)As revealed by magnetic circular dichroism

H. D. Gan·H. Z. Zheng·J. F. Bi·Y. Ji·B. Q. Sun·G. R. Li·X. Z. Ruan·J. Lu·J. H. Zhao
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Abstract

To clarify whether or not (Ga,Cr)As is an intrinsic diluted magnetic semiconductor, a systematic study of the magnetic circular dichroism (MCD) was carried out for a series of (Ga,Cr)As epilayers grown by the low-temperature molecular-beam epitaxy technique. The present work provides unambiguous evidence for the intrinsic ferromagnetism of the (Ga,Cr)As epilayers with all the necessary properties in accordance with that of a diluted magnetic semiconductor, especially the hysteresis characteristics, which is opened up in the magnetic field dependence of MCD.

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H. D. Gan, H. Z. Zheng, J. F. Bi, Y. Ji, B. Q. Sun, G. R. Li, X. Z. Ruan, J. Lu, J. H. Zhao. 2007-11-02. Evidence for the intrinsic ferromagnetism of semiconductor (Ga,Cr)As revealed by magnetic circular dichroism. https://arxiv.org/abs/0711.0241

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