MAGNETO-OPTICAL MATERIAL - MITSUI PETROCHEMICAL IND

Title:

MAGNETO-OPTICAL MATERIAL

Document Type and Number:

Japanese Patent JPH046110

Kind Code:

A

Abstract:

PURPOSE: To increase Faraday rotation coefft., to reduce temp. coefft. and to prevent the deterioration of temp. characteristics by growing a crystalline film of magnetic garnet having a compsn. represented by a specified formula on a nonmagnetic garnet substrate.

CONSTITUTION: Fe2O3, Yb2O3 and Ho2O3 are melted in a flux consisting of PbO, B2O3 and Bi2O3 to obtain a melt having a prescribed compsn. A nonmagnetic garnet substrate is immersed in the melt to form a crystalline film of magnetic garnet having a compsn. represented by the formula (where 0<x<3 and 0<y<3) on the substrate in ≥ 500 μm thickness and the title material is obtd.

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Inventors:

KOJIMA MINORU
TAKAHASHI TAKAO

Application Number:

JP10981090A

Publication Date:

January 10, 1992

Filing Date:

April 25, 1990

Export Citation:

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Assignee:

MITSUI PETROCHEMICAL IND

International Classes:

C01G49/00; C30B29/28; (IPC1-7): C01G49/00

Attorney, Agent or Firm:

Moriya Kazuo

Next Patent: OPTICAL ELEMENT FORMING DEVICE