Red Shift of Faraday Rotation in Thin Films of Completely Bismuth-Substituted Iron Garnet Bi3Fe5O12
Red Shift of Faraday Rotation in Thin Films of Completely Bismuth-Substituted Iron Garnet Bi3Fe5O12
复制标题
完全铋取代的铁石榴石 Bi3Fe5O12 薄膜中法拉第旋转的红移
DOI：
10.1143/jjap.38.6687
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发表时间：
1999
影响因子：
1.5
通讯作者：
J. Liaw
中科院分区：
文献类型：
--
作者：
M. Chern;F. Lo;Da Liu;Kunya Yang;J. Liaw
研究了铋含量x = 0.5、1.0、1.5、2.0、2.5和3.0时，脉冲激光沉积（PLD）在[111]取向钆镓石榴石（GGG）衬底上生长BixY3-xFe5O12 （Bi:YIG）外延膜的磁光法拉第旋转。在光子能量为1.5 ~ 3.5 eV的情况下，用旋转分析仪椭圆偏振仪（RAE）测量了薄膜的法拉第旋转角θF。结果表明，随着x的增加，法拉第旋转增加，θF的峰在x从1.0到1.5时向红色区域移动。完全双取代铁石榴石Bi3Fe5O12 （BIG）的θF峰位置分别在2.4和2.8 eV，峰值分别高达-23°/µm和44°/µm
The magnetooptical Faraday rotations of epitaxial films of BixY3-xFe5O12 (Bi:YIG) grown on [111]-oriented gadolinium gallium garnet (GGG) substrates by pulsed laser deposition (PLD) were studied with bismuth content x = 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0. The Faraday rotation angles, θF, of the films were measured by the method of rotating analyzer ellipsometry (RAE) with the photon energy varied from 1.5 to 3.5 eV. It was shown that in addition to the increase of the Faraday rotation with increasing x, the peaks of θF shifted toward the red region as x changed from 1.0 to 1.5. The peak positions of θF for the completely Bi-substituted iron garnet, Bi3Fe5O12 (BIG), were found at 2.4 and 2.8 eV with peak values as large as -23 deg/µm and 44 deg/µm, respectively