Magneto-optical studies of ferromagnetism in the II-VI diluted magnetic semiconductor Zn1-xCrxTe

被引：0
|
作者：
Saito, H [1 ]
Zayets, V [1 ]
Yamagata, S [1 ]
Ando, K [1 ]
机构：
[1] Natl Inst Adv Ind Sci & Technol, Nanoelect Res Inst, Tsukuba Cent 2, Umezono 1-1-1, Tsukuba, Ibaraki 3058568, Japan
来源：
PHYSICAL REVIEW B | 2002年 / 66卷 / 08期
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中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Epitaxial films of Zn1-xCrxTe were grown on a GaAs substrate. The lattice constant of Zn1-xCrxTe follows Vegard's law, meaning that Cr ions replace Zn sites in the host lattice. A strong enhancement of the magnetic circular dichroism (MCD) signals was observed near the optical transition energies corresponding to the critical points of the host ZnTe. This indicates that Zn1-xCrxTe is a diluted magnetic semiconductor with a strong sp-d mixing. The magnetic-field dependence of the MCD signals showed that the observed ferromagnetic hysteresis loop comes from Zn1-xCrxTe.
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页数：4
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