中国Sgggクリスタル会社
China Sggg crystal supplier
Sggg crystal factory
Sggg crystal wholesale

SGGG

Sggg結晶、すなわちCa Mg Zrドープガドリニウムガリウムガーネットは、Bi Feガーネットエピタキシャル膜用の優れた基板材料です。

Product Descriptions

Gadolinium gallium garnet (GGG) substrate, one of the earlier developed garnet materials, can not be used as the substrate of high bismuth substituted iron garnet epitaxial layer because of its small lattice constant. Therefore, the sggg crystals with Ca, Mg and Zr as substitution ions are more suitable for the epitaxial films.

主な利点:

Low optical losses (<0.1%/cm)

High thermal conductivity (7.4W m-1K-1)



代表的なアプリケーション:

Substrate materials for YIG and BIG magneto-optical epitaxial membranes

Magnetic bubble memory storage

Magnetic refrigeration



材料特性

材料 GGG SGGG
化学式 Gd3Ga5O12 Substituted Gd3Ga5O12
Crystal Structure Cubic Cubic
格子定数 a=12.383 Å a=12.497 Å
Growth Method Czochralski Czochralski
Hardness 8.0 7.5
密度 7.13g/cm³ 7.09g/cm³
融点 1725℃ 1730℃
Refractive Index 1.954 @ 1064nm 1.954 @ 1064nm



Technical Parameters

Crystro offers:

Dimensions Max Diameter 101.6mm (4 inch)
Thickness 0.5mm Other thickness upon request
Polishing Single or double sides polishing
Orientation <111>±0.2°
Orientation Flat 2°(within 1° for special requirement)
Ra Ra≤1nm, EPI ready
Angle of Crystalline Special size and orientation are available upon request

アプリケーション

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