GGG
Gadolinium Gallium Garnet (GGG) is a special substrate for magneto-optical thin films. GGG single crystal substrates with different tangential directions can be optimally matched with the crystal lattice of YIG and BIG thin film magneto-optical materials, so as to ensure the successful epitaxial growth of YIG and BIG thin films. GGG crystal is also the best substrate material for making microwave isolators.
使用/应用
Gadolinium Gallium Garnet (GGG) is a special substrate for magneto-optical thin films.
Used for epitaxial growth of YIG and BIG thin films.
The best substrate material for making microwave isolators.
特点/优势
GGG single crystal substrates with different tangential directions can be optimally matched with the crystal lattice of YIG and BIG thin film magneto-optical materials.
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Crystal Structure
Cubic
Growth Method
Czochralski
Lattice Constant
a=12.376Å,(Z=8)
Melt Point
1800℃
Purity
99.95%
Density
7.09（g/cm3）
Mohs Hardness
6-7（mohs）
Refractive Index
1.95
Dimension
5x5mm，10x5mm，10x10mm，15x15mm，20x15mm，20x20mm，Dia50.8mm
Thickness
0.5mm，1.0mm
Polishing
One side or two sides
Orientation
<111>/<100>/<110> ±0.5º
Crystal Plane Orientation Accuracy
±0.5°
Edge Orientation Accuracy
2°（Special requirements can reach within 1°）
Bevel Wafer
According to specific requirements, wafers with edge-oriented crystal planes inclined at a specific angle (inclination angle 1°-45°) can be processed.
Surface Roughness
Ra≤5Å（5×5µm）
Package
Class 100 clean bag, Class 1000 super clean room
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Dimension
5x5mm，10x5mm，10x10mm，15x15mm，20x15mm，20x20mm
∅50.8mm
Thickness
0.5mm，1.0mm