SrLaAlO₄ / LaSrAlO₄ LSAO 10x10x0.5mmt5x5x1mmt Substrate For Epitaxy Customized

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

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).

Other Related Product Recommendations

ZnTe Wafer ZnTe Crystal Type N Type P Custom Sizes And Specifications Available