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SGGG

SGGG crystal, namely Ca Mg Zr doped gadolinium gallium garnet, is an excellent substrate material for Bi Fe garnet epitaxial films.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.

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Chemical formula

Substituted GdaGa5O12

Crystal structure

Cubic system

Lattice constant

a=12.497Å

Growth method

Czochralski

Hardness

7.5 Mohs

Density

7.09g/cm³

Melting point

1730℃

Reflection coefficient

1.954 at 1064nm

Size

MaxФ76.2mm(3inch

Thickness

0.5mm/1mm

Polishing

Single or double sided

Crystal orientation

±0.2°

Edge orientation accuracy

The characteristic requirements can reach 1 ° within

Oblique chip

According to specific requirements, the crystal with edge orientation can be tilted at a specific angle (tilt angle 1 °- forty-five °))

Surface roughness

Ra≤1nm

Packing

Class 100 clean bag, class 1000 ultra static room

Note: Parameters above can be customized as required.


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