Fabrication of Highly Crystalline Corundum-Structured α-(Ga1-xFex)2O3 Alloy Thin Films on Sapphire Substrates

被引:99
作者
Kaneko, Kentaro [1 ,2 ]
Nomura, Taichi [1 ,2 ]
Kakeya, Itsuhiro [1 ]
Fujita, Shizuo [2 ]
机构
[1] Kyoto Univ, Dept Elect Sci & Engn, Nishikyo Ku, Kyoto 6158510, Japan
[2] Kyoto Univ, Photon & Elect Sci & Engn Ctr, Nishikyo Ku, Kyoto 6158520, Japan
关键词
BETA-GA2O3; SINGLE-CRYSTALS; CHEMICAL-VAPOR-DEPOSITION; HIGH-TEMPERATURE; GROWTH; OXIDATION; CR2O3;
D O I
10.1143/APEX.2.075501
中图分类号
O59 [应用物理学];
学科分类号
摘要
Highly crystalline corundum-structured alpha-(Ga1-xFex)(2)O-3 alloy thin films were fabricated on c-plane sapphire substrates by using a mist chemical vapor deposition method. The full-widths at half maximum of X-ray diffraction rocking curves were smaller than 100 arcsec for the entire range of x from 0 to 1. Optical band gaps were artificially tuned to a value between those of alpha-Ga2O3 and alpha-Fe2O3, that is, 2.2 and 5.3 eV with changing the Fe content x in the films. Magnetic measurements revealed ferromagnetic properties of a alpha-(Ga1-xFex)(2)O-3 (x=0.24) thin film at 110 K. (C) 2009 The Japan Society of Applied Physics
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页数:3
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