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The structural and magnetic properties of Fe/(Ga, Mn) As heterostructures

被引：1
|
作者：
Deng Jiajun [1 ]
Chen Pei [1 ]
Wang Wenjie [1 ]
Hu Bing [1 ]
Che Jiantao [1 ]
Chen Lin [2 ]
Wang Hailong [2 ]
Zhao Jianhua [2 ]
机构：
[1] North China Elect Power Univ, Math & Phys Dept, Beijing 102206, Peoples R China
[2] Chinese Acad Sci, State Key Lab Superlattices & Microstruct, Inst Semicond, Beijing 100083, Peoples R China
来源：
JOURNAL OF SEMICONDUCTORS | 2013年 / 34卷 / 08期
基金：
中国国家自然科学基金;
关键词：
heterostructures; magnetic semiconductor; ferromagnetic metal; molecular-beam epitaxy;
D O I：
10.1088/1674-4926/34/8/083003
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Fe/(Ga, Mn) As heterostructures were fabricated by all molecular-beam epitaxy. Double-crystal X-ray diffraction and high-resolution cross-sectional transmission electron micrographs show that the Fe layer has a well ordered crystal orientation and an abrupt interface. The different magnetic behavior between the Fe layer and (Ga, Mn) As layer is observed by superconducting quantum interference device magnetometry. X-ray photoelectron spectroscopy measurements indicate no Fe-2 As and Fe-Ga-As compounds, i.e., no dead magnetic layer at the interface, which strongly affects the magnetic proximity and the polarization of the Mn ion in a thin (Ga, Mn) As region near the interface of the Fe/(Ga, Mn) As heterostructure.
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页数：4
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