SHANGHAI FAMOUS TRADE CO.,LTD
| Melting Point | ~1650–1700 °C |
| Color | Transparent to pale yellow |
| Mohs Hardness | 6–6.5 |
| Typical Crystal Orientation | (001), (100), (110) |
| Brand Name | ZMSH |
| Place of Origin | China |
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Product Specification
| Melting Point | ~1650–1700 °C | Color | Transparent to pale yellow |
| Mohs Hardness | 6–6.5 | Typical Crystal Orientation | (001), (100), (110) |
| Brand Name | ZMSH | Place of Origin | China |
| High Light | Customized LSAO Substrate ，Epitaxy LSAO Substrate ，SrLaAlO₄ LSAO Substrate | ||
SrLaAlO₄ /LaSrAlO₄ LSAO10x10x0.5mmt5x5x1mmt Substrate for Epitaxy customized
Abstract of SrLaAlO₄ / LaSrAlO₄/LASO
SrLaAlO₄ , also written as LaSrAlO₄ depending on the elemental order, is a complex oxide crystal composed of strontium (Sr), lanthanum (La), aluminum (Al), and oxygen (O). It is a member of the perovskite-related family of oxides, widely studied and used in materials science due to its favorable structural, thermal, and lattice-matching properties. The material is most well-known for its use as a substrate for the epitaxial growth of high-temperature superconducting (HTS) films.
Attribute Table of SrLaAlO₄ /LaSrAlO₄/LASO
| Property | Value / Description |
| Chemical Formula | SrLaAlO₄ or LaSrAlO₄ |
| Crystal Structure | Tetragonal |
| Space Group | I4/mmm |
| Lattice Constants | a = 3.754 Å, c = 12.63 Å (typical) |
| Density | ~6.56 g/cm³ |
| Melting Point | ~1650–1700 °C |
| Thermal Expansion Coefficient | ~7.4 × 10⁻⁶ /K |
| Refractive Index | ~1.84 (at 633 nm wavelength) |
| Color | Transparent to pale yellow |
| Mohs Hardness | 6–6.5 |
| Typical Crystal Orientation | (001), (100), (110) |
| Main Applications | Substrate for epitaxial growth of high-Tc superconductors like YBCO |
| Lattice Matching | Good match with YBa₂Cu₃O₇ (YBCO), La₂CuO₄, and similar oxides |
| Growth Method | Czochralski (CZ) method |
| Crystal Form | Single crystal |
| Surface Finish | SSP (Single-Side Polished), DSP (Double-Side Polished) |
Physical image of the SrLaAlO₄ /LaSrAlO₄/ LASO display
Benefits of the SrLaAlO₄ /LaSrAlO₄/ LASO as a substrate
Lattice Matching: The lattice constants of SrLaAlO₄ closely match those of YBCO and La₂CuO₄, resulting in low strain and high-quality epitaxial interfaces.
Thermal Stability: It withstands high-temperature deposition processes (up to ~1000 °C) without significant degradation.
Chemical Stability: Inert against most deposition atmospheres, including oxygen-rich environments used in oxide MBE and PLD.
Surface Quality: High-quality polishing yields flat, defect-free surfaces with roughness <1 nm RMS, essential for thin-film uniformity.
Common Applications of the SrLaAlO₄ /LaSrAlO₄/LASO
Epitaxial Substrate for High-Tc Superconductors
The most widespread use of LaSrAlO₄ is as a substrate for YBCO (YBa₂Cu₃O₇₋ₓ) and similar HTS films. It enables the growth of highly oriented, epitaxial, defect-free films, essential for maximizing the critical current density (Jc) and transition temperature (Tc).
Oxide Electronics
LaSrAlO₄ is suitable for the growth of other perovskite-type oxide films used in ferroelectrics, dielectrics, and spintronics. Films like LaAlO₃, SrTiO₃, or LaMnO₃ can be grown on LaSrAlO₄ substrates.
Photonic and Electro-Optic Devices
Due to its optical transparency and flat, stable surface, it can also serve as a host or base for optical coatings, waveguides, and nonlinear optical devices in the visible and near-infrared range.
Multiferroic Heterostructures
SrLaAlO₄ is also used in research involving multiferroic and magnetoelectric devices, where high-quality interfaces between layers are essential.
Q&A
Q:Why SrLaAlO₄ is Important?
A:The importance of SrLaAlO₄ arises primarily from its crystallographic compatibility with high-Tc superconducting films. One of the major challenges in growing high-quality superconducting thin films is lattice mismatch between the film and the substrate. Even a small mismatch can cause misfit dislocations, which degrade the superconducting properties. SrLaAlO₄ offers a nearly perfect lattice match to many oxide superconductors and related materials.
In addition, the thermal expansion coefficient of SrLaAlO₄ is also close to that of these films, minimizing thermal stress during temperature cycling (e.g., from deposition at high temperature to cooling for cryogenic measurements or applications).
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Company Details
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Manufacturer,Agent,Importer,Exporter,Trading Company
Year Established:
2013
Total Annual:
1000000-1500000
Ecer Certification：
Verified Supplier
SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014. We specialize in processing a varity of materials into wafers, substrates and custiomized optical glass parts.components widely used in electronics, op... SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014. We specialize in processing a varity of materials into wafers, substrates and custiomized optical glass parts.components widely used in electronics, op...
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