| 发明名称 |
Faraday rotator having a rectangular shaped hysteresis |
| 摘要 |
A Faraday rotator is formed of a bismuth-substituted iron garnet single crystal film grown by a liquid phase epitaxial method. The single crystal film is represented by a formula: Tb3-xBixFe5-y-zGayAlzO12 wherein x has the range 1.1</=x</=1.5, y+z has the range 0.65</=y+z</=1.2, and z has the range z</=y. The bismuth-substituted rare earth single crystal film is subjected to a magnetization process where the single crystal film is magnetized by an external magnetic field so that the film has a square magnetic hysteresis loop. The external magnetic field has a magnetic field strength of 1,000 Oe or higher and is applied in a direction normal to a surface of the bismuth-substituted rare earth iron garnet single crystal film.
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| 申请公布号 |
US5898516(A) |
申请公布日期 |
1999.04.27 |
| 申请号 |
US19970867497 |
申请日期 |
1997.06.02 |
| 申请人 |
MITSUBISHI GAS CHEMICAL COMPANY, INC. |
发明人 |
SHIRAI, KAZUSHI;TAKEDA, NORIO;HIRAMATSU, KIYONARI |
| 分类号 |
G02F1/09;C30B19/12;C30B29/28;G01R33/032;(IPC1-7):G02F1/00 |
主分类号 |
G02F1/09 |
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