Gadolinium Gallium Garnet (Gd<sub>3</sub>Ga<sub>5</sub>O<sub>12</sub>)  (GGG) Crystals and Substrates,  MSE Supplies

Gadolinium Gallium Garnet (Gd3Ga5O12) (GGG) Crystals and Substrates

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GGG (Gadolinium Gallium Garnet) crystals and substrates

Chemical formula: Gd3Ga5O12

GGG single crystals has excellent properties, such as high mechanical strength, chemical stability, thermal conductivity and thermal capacity. Because of these unique properties, GGG crystals are considered as one of the best materials used for a magneto-optical films (such as YIG or BIG thin film)

Both standard and custom made GGG crystals and substrates are available at MSE Supplies.  Nd:GGG (Neodymium doped Gadolinium Gallium Garnet) crystals are also available. 

Main Parameters
Crystal structure
Cubic Garnet
Growth method
Unit cell constant
a=12.37 Å, (Z=8)
Melt point (°C)
7.08 g/cm3
Thermal Expansion

8 x 10-6/K

6.5-7.5 Mohs
Index of refraction
1.95 @1064nm
Transparency wavelength range 400 - 7000 nm
Color Colorless
5x5 mm, 10x10 mm, 20x20 mm, dia 2", other sizes are available upon request
0.5mm, 1.0mm
Surface Polishing
Single or double side polished (epi-ready)
Crystal Orientations
(100), (110), (111)
Surface Roughness Ra:
~ 0.5nm 
Packed in a class 100 clean bag.


O.A. Petrenko, C. Ritter, M. Yethiraj, and D. McK Paul. Investigation of the Low-Temperature Spin-Liquid Behavior of the Frustrated Magnet Gadolinium Gallium Garnet. Phys. Rev. Letters, Vol (80(20), pp 4570-4573, 1998.

M. Sabbaghi, G.W. Hanson, M. Weinert, F. Shi, and C. Cen. Terahertz response of gadolinium gallium garnet (GGG) and gadolinium scandium gallium garnet (SGGG). J. App. Phys. Vol. (127, Article#025104, 2020.