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Stock List Crystals & Substrates

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SurfaceNet GmbH Germany (Crystals, Substrates, Service)
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Gallium Gadolinium Garnet (GGG)

and Subsituted Gadolinium Gallium Garnet (SGGG)

 

Gallium Gadolinium Garnet (GGG), SurfaceNet GmbH GermanyGallium Gadolinium Garnet (GGG), SurfaceNet GmbH Germany

Crystal properties

Crystal growth method

Czochralski

 

Crystal growth orientation

(100), (111)

Maximum size

3 inch diameter

Variations

Dopands on request

Crystallographic properties

Crystallographic structure

Cubic
a = 12.383 Å
a = 12.505 Å SGGG

Mineralogical

Garnet

Twinning structure

Perfect

Colour

Colourless / Brownish SGGG

Physical properties

Density

7.09 g/cm3

Melting point

1730 °C

Hardness

7.5 (Mohs)

Dielectric constant

30

Dielectric loss tangent (10 GHz)

ca. 3.0 * 10_4

Optical properties

Transmission range

0.3 to 7.0 mm

Refraction index:

nd = 1.9708 at 577 nm

ne 1.9567

nc 1.9577 at 625nm

ne 1.9567

nc 1.9500 at 2000nm

ne 1.9567

nc 1.9454 at 5000nm

X-ray properties

Orientation: (100), (111)

 

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