MSE PRO LSAT Lanthanum-Strontium Aluminium Tantalate Crystal Substrates
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MSE PRO™ LSAT crystal substrates are high-purity, single-crystal materials engineered for advanced thin film research. The stable cubic perovskite structure and lattice parameter of 3.868 Å provide an excellent option for the epitaxial growth of complex oxide thin films, including lanthanum-based compounds and superconducting materials.
Technical Specifications
MSE PRO™ LSAT substrates are manufactured to precise crystallographic and physical specifications to provide reproducibility and optimal film growth.
Crystal Properties
- Chemical formula: (LaAlO₃)₀.₃(Sr₂TaAlO₆)₀.₇ or (La0.18Sr0.82)(Al0.59Ta0.41)O3
- Crystal structure: Cubic perovskite
- Lattice parameter: a = 3.868 Å
- Growth method: Czochralski (CZ)
- Purity: 99.9% (trace metal basis)
Physical and Thermal Properties
- Density: 6.74 g/cm³
- Hardness: 6.5 Mohs
- Melting point: 1,840°C
- Thermal expansion coefficient: 10 × 10⁻⁶/°C
- Dielectric constant: 22
- Thermal conductivity: 5.1 W/(m·K)
Standard Substrate Specifications
- Available orientations: (100), (110), (111)
- Standard sizes: 5 mm by 5 mm, 10 mm by 10 mm, 25.4 mm (1 inch)
- Thickness options: 0.5 mm, 1.0 mm
- Surface polish: Single or double side polished, epi-ready surface with Ra < 0.5 nm (5 μm × 5 μm area)
Recommended Applications
LSAT's superior chemical and thermal stability minimizes defect formation during high-temperature epitaxial growth processes. Primary applications include:
- High-temperature superconductors, such as YBCO and iron-pnictides
- Ferroelectric and piezoelectric materials
- Rare-earth manganites and nickelates
- Compound semiconductors, such as GaN
Ordering and Inquiries
To accommodate a wide range of research and production needs, MSE Supplies offers multiple options for LSAT substrate ordering and customization:
- Packaging: We package MSE PRO™ LSAT crystal substrates in a Class 1000 clean room with Class 100 grade plastic bags.
- Customization: Special sizes, thicknesses and orientations are available upon request.
Purchase LSAT substrates online today. For custom orders, bulk pricing or additional information, contact us online or email sales@msesupplies.com.