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.


Uses/Applications

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.

Features/Benefits

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.

  • 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

    6-7mohs

    Refractive Index

    1.95

    Dimension

    5x5mm10x5mm10x10mm15x15mm20x15mm20x20mmDia50.8mm

    Thickness

    0.5mm1.0mm

    Polishing

    One side or two sides

    Orientation

    <111>/<100>/<110>±0.5º

    Crystal Plane Orientation Accuracy

    ±0.5°

    Edge Orientation Accuracy

    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≤5Å5×5µm

    Package

    Class 100 clean bag, Class 1000 super clean room


  • Dimension
    5x5mm,10x5mm,10x10mm,15x15mm,20x15mm,20x20mm

    50.8mm

    Thickness
    0.5mm,1.0mm