Growth and characterization of ferromagnetic Ga1-xMnxAs epilayers on (001) ZnSe

被引:4
|
作者
Chun, SH [1 ]
Ku, KC [1 ]
Potashnik, SJ [1 ]
Schiffer, P [1 ]
Samarth, N [1 ]
机构
[1] Penn State Univ, Dept Phys, University Pk, PA 16802 USA
来源
关键词
D O I
10.1116/1.1456523
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We describe the fabrication of ferromagnetic Ga1-xMnxAs (x = 0.03 and 0.04) epilayers on (00 1) ZnSe using a recrystallized GaAs template. The magnetic properties are comparable to those of Ga1-xMnxAs epilayers grown directly on GaAs. For instance, as-grown samples have a Curie temperature T-C = 65 K that can be increased to 80 K after postgrowth annealing in a N-2 atmosphere. The temperature dependence of the sample resistivity changes from insulating to metallic at the transition temperature. The n doping of ZnSe with Cl does not affect the ferromagnetism of Ga1-xMxAs, hence providing a way to possible applications with Ga1-xMnxAs/ZnSe heterostructures. (C) 2002 American Vacuum Society.
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收藏
页码:1266 / 1269
页数:4
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