TERBIUM PARAMAGNETIC GARNET SINGLE CRYSTAL AND MAGNETO-OPTICAL DEVICE

Title:

TERBIUM PARAMAGNETIC GARNET SINGLE CRYSTAL AND MAGNETO-OPTICAL DEVICE

Document Type and Number:

WIPO Patent Application WO/2004/029339

Kind Code:

A1

Abstract:

A terbium paramagnetic garnet single crystal having a strong Faraday effect, a high transmittance to light in the visible region and a large Verdet constant, and a magneto-optical device using the single crystal are disclosed. The terbium paramagnetic garnet single crystal contains at least terbium and at least one of aluminum and gallium, and is characterized that a part of the terbium is substituted with at least one of cerium and praseodymium. The terbium paramagnetic garnet single crystal and the magneto-optical device can be used in various fields such as of electric power, automobiles, and plants, wherein it is necessary to find changes of circumstances by sensing a magnetic field with a light, and optical communication wherein it is necessary to stably emit light.

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Inventors:

SEKIJIMA TAKENORI (JP)
GEHO MIKIO (JP)

Application Number:

PCT/JP2003/011820

Publication Date:

April 08, 2004

Filing Date:

September 17, 2003

Export Citation:

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Assignee:

MURATA MANUFACTURING CO (JP)
SEKIJIMA TAKENORI (JP)
GEHO MIKIO (JP)

International Classes:

C30B1/10; C30B13/00; C30B29/28; (IPC1-7): C30B29/28; G02F1/09

Foreign References:

JPH0812498A	1996-01-16
EP1074872A2	2001-02-07
JP2002255688A	2002-09-11

Other References: