Magnetic and magneto-optical properties of Fe-doped SrTiO3 films

被引：68
|
作者：
Kim, Hyun-Suk [1 ]
Bi, Lei [1 ]
Dionne, G. F. [1 ,2 ]
Ross, C. A. [1 ]
机构：
[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA
[2] MIT, Lincoln Lab, Lexington, MA 02173 USA
来源：
APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 09期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1063/1.2977963
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Epitaxial films of magnetically doped SrTi(1-x)Fe(x)O(3) (x <= 0.5) were grown on (001) LaAlO(3) substrates by pulsed laser deposition. Structural and magnetic studies indicate that the observed ferromagnetism is intrinsic rather than from an impurity phase. The higher transparency with Fe doping is attributed to charge compensation resulting from hole doping by Fe incorporation into the SrTiO(3) lattice. SrTi(0.6)Fe(0.4)O(3) has a reasonably high Faraday rotation of 0.078 deg/mu m accompanied by low optical loss (0.07 dB/mu m), which makes it a promising candidate for integrated waveguide isolator applications. (c) 2008 American Institute of Physics.
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