Magnetic and magneto-optic study of a layered Co/Pt - Dysprosium-iron-garnet system

被引:0
作者
Meldrim, JM [1 ]
Kirby, RD
DeVries, MJ
Woollam, JA
Sellmyer, DJ
机构
[1] Univ Nebraska, Ctr Mat Res & Anal, Lincoln, NE 68588 USA
[2] Univ Nebraska, Behlen Lab Phys, Lincoln, NE 68588 USA
[3] Univ Nebraska, Ctr Microelect & Opt Mat Res, Lincoln, NE 68588 USA
[4] Univ Nebraska, Dept Elect Engn, Lincoln, NE 68588 USA
关键词
cobalt; garnet; magneto-optic; platinum;
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
We have studied the effects of placing Co/Pt multilayers on dysprosium-iron-garnet doped-with bismuth and aluminum. The garnet was deposited by RF-magnetron sputtering and crystallized by rapid thermal annealing. The Co/Pt multilayers were then deposited by DC-magnetron sputtering. The garnet thickness was held constant at 1000 Angstrom while the Co/Pt multilayer had the form of [3 Angstrom Co/9 Angstrom Pt](n) with n ranging from 1 to 16. Coercivities of the samples ranged from about 300 to 2000 Oe. Kerr rotations were as high as 1.8 degrees and ellipticities up to 2 degrees depending upon the wavelength of light and the number of Co/Pt bilayers. Magneto-optic signal figures of merit are determined for several of these composite systems.
引用
收藏
页码:1991 / 1993
页数:3
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