Single-Crystalline Ferromagnetic Alloy Semiconductor Ge1-xMnx Grown on Ge(111)

被引：7

作者：

Yada, Shinsuke ^{[1
]}

Okazaki, Ryohei ^{[1
]}

Ohya, Shinobu ^{[1
]}

Tanaka, Masaaki ^{[1
]}

机构：

[1] Univ Tokyo, Dept Elect Engn & Informat Syst, Bunkyo Ku, Tokyo 1138656, Japan

来源：

APPLIED PHYSICS EXPRESS | 2010年 / 3卷 / 12期

基金：

日本学术振兴会; 日本科学技术振兴机构;

关键词：

D O I：

10.1143/APEX.3.123002

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate the structural and magnetic properties of Ge1-xMnx films grown on Ge(111) substrates. The Ge1-xMnx films prepared with appropriate epitaxial growth conditions are diamond-type single crystals with a homogeneous Mn distribution. Magnetic circular dichroism (MCD) spectra exhibit enhanced peaks at the critical point energy E-1 of Ge, with single-phase ferromagnetism. The MCD characteristics are consistent with magnetization data, and the Curie temperature increases with the Mn content x. These results indicate that the Ge1-xMnx films grown on Ge(111) are intrinsic ferromagnetic alloy semiconductors. (C) 2010 The Japan Society of Applied Physics

引用

页数：3

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