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Gadolinium Gallium Garnet Single Crystal Substrate, (111), DSP (10 pcs/box)
Product Type: GGG single crystal substrate
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For material matching, specification review, model selection or configuration confirmation, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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The GGG (111) DSP substrate is a fixed-orientation, double-side-polished passive substrate for epitaxial thin-film deposition. Its use requires material compatibility verification and precise specification confirmation prior to installation.
- Material Matching: Confirm that the GGG substrate material and crystal family match the target thin-film or device workflow to avoid lattice mismatch or thermal expansion incompatibility.
- Specification Review: Verify the orientation (111), dimensions, thickness, polishing condition (DSP), offcut, and quantity before proceeding with quotation and procurement.
- Fixed Orientation and Finish: The substrate is exclusively available in (111) orientation and double-side polished finish; alternative orientations or surface finishes are not offered.
What is the purity of the Gadolinium Gallium Garnet (GGG) single crystal substrate?
The GGG substrate is offered with a purity of 99.99%, as specified in the technical data for the AF-GGG111-DSP model. This high purity minimizes contamination during thin-film deposition and epitaxial growth.
What growth method is used to produce this GGG single crystal substrate?
The GGG single crystal substrate is grown using the Czochralski (CZ) method, as indicated in the technical specifications. This method is well-suited for producing large, high-quality single crystals with low defect densities.
What are the crystal structure and lattice constant of the GGG substrate?
The GGG substrate has a cubic crystal structure with a lattice constant of a = 12.380 Å and Z = 8. These parameters are critical for evaluating epitaxial compatibility with thin-film materials such as yttrium iron garnet (YIG) and other oxide layers.
This GGG single crystal substrate offers high purity (99.99%) and a cubic lattice constant of 12.380Å, making it suitable for epitaxial growth of garnet-type thin films. However, its moderate hardness (6.5 Mohs) requires careful handling, and the fixed (111) orientation limits application flexibility compared to substrates available in multiple orientations.
Positive
- High purity and lattice matching: 99.99% purity and cubic lattice constant of 12.380 Å support epitaxial growth of garnet thin films with minimal defects.
- High thermal stability: Melting point of ~1750-1800°C allows high-temperature processing steps without substrate degradation.
Trade-offs
- Moderate hardness requires care: Hardness of 6.5 Mohs makes the substrate more susceptible to scratching during handling and cleaning compared to harder substrates like sapphire.
- Fixed (111) orientation only: Only available in (111) orientation, which may not match the lattice or symmetry requirements of all target thin-film or device workflows.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
