LSAT ((LaAlO3)0.3 (Sr2AlTaO6)0.7) Substrates
LSAT (Lanthanum Aluminate Strontium Aluminum Tantalate) is a material consisting of a solid solution of lanthanum aluminate and strontium aluminum tantalate. It is often used as a substrate for the growth of crystal structures for various applications. LSAT has a high thermal expansion coefficient, high dielectric constant, and high thermal conductivity, making it an attractive material for use in high-temperature electronic devices, especially in high-frequency applications.
One of the major advantages of LSAT over other substrate materials is its high thermal stability, which makes it suitable for high-temperature processes and environments. Additionally, LSAT has a large bandgap and high dielectric constant, which make it a useful substrate for growing electronic materials, such as ferroelectrics, high-temperature superconductors, and piezoelectric crystals.
LSAT is typically synthesized using high-temperature solid-state reactions, and can be prepared in large single crystals using the Czochralski method. The properties of LSAT can be tailored by adjusting the composition and processing conditions to meet specific requirements for various applications.