Ferromagnetic resonance in single crystal bismuth iron garnet films

被引：0
|
作者：
Denysenkov, V [1 ]
Jalali-Roudsar, A
Adachi, N
Khartsev, S
Grishin, A
Okuda, T
机构：
[1] Royal Inst Technol, Dept Condensed Matter Phys, S-10044 Stockholm, Sweden
[2] Nagoya Inst Technol, Nagoya, Aichi 466, Japan
来源：
MATERIALS ISSUES FOR TUNABLE RF AND MICROWAVE DEVICES | 2000年 / 603卷
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D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Among other magneto-optic materials bismuth substituted yttrium iron garnet (Bi,YI,), Fe5O12 has the highest Faraday rotation effect in visible region. Completely substituted bismuth iron garnet Bi3Fe5O12 (BIG) films have been grown by pulsed laser deposition technique onto (111) (NdGd)(3)(ScGa)(5)O-12 single crystal with lattice constant of 12.623 Angstrom. X-ray diffraction proves epitaxial film quality. VSM measurements yield the saturation magnetization 4 pi M-s= 1100 G and coercive field is about 50 Oe. Ferromagnetic resonance (FMR) method reveals perpendicular magnetic anisotropy in fabricated films. Angular measurements of FMR give the constants of uniaxial and cubic anisotropy in BIG film: K-u = 5.9x10(4) erg/cm(3) and K-1 = - 6.95x10(3) erg/cm(3). The Faraday rotation has been found to reach - 7.8 deg/mu m at 630 nm.
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页码：107 / 112
页数：6
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