Ferromagnetic properties of Zn1-xMnxO epitaxial thin films

被引：542
|
作者：
Jung, SW
An, SJ
Yi, GC [1 ]
Jung, CU
Lee, SI
Cho, S
机构：
[1] Pohang Univ Sci & Technol, Dept Mat Sci & Engn, Pohang 790784, South Korea
[2] Pohang Univ Sci & Technol, Natl Creat Res Initiat Ctr Superconduct, Pohang 790784, South Korea
[3] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea
[4] Univ Ulsan, Dept Phys, Ulsan 680749, South Korea
来源：
APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 24期
关键词：
D O I：
10.1063/1.1487927
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on ferromagnetic characteristics of Zn1-xMnxO (x=0.1 and 0.3) thin films grown on Al2O3(00.1) substrates using laser molecular-beam epitaxy. By increasing the Mn content, the films exhibited increases in both the c-axis lattice constant and fundamental band gap energy. The Curie temperature obtained from temperature-dependent magnetization curves was 45 K for the film with x=0.3, depending on the Mn composition in the films. The remanent magnetization and coercive field of Zn0.9Mn0.1O at 5 K were 0.9 emu/g and 300 Oe, respectively. For Zn0.7Mn0.3O, the remanent magnetization at 5 K increased to 3.4 emu/g. (C) 2002 American Institute of Physics.
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收藏
页码：4561 / 4563
页数：3
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