Strontium lanthanum aluminate (SrLaAlO4 or SLAO) is a mixed metal oxide that is sometimes used as a substrate material in various applications, such as in the field of electronics, optoelectronics, and photonics. SLAO has a high temperature stability, good thermal conductivity, and a large bandgap, which makes it an attractive material for high-temperature and high-power electronic devices. It is also known for its high dielectric constant and good electrical insulation properties, which make it useful for applications that require high capacitance or high-frequency behavior. However, the material is relatively expensive compared to other substrate materials and its growth process is challenging, which may limit its widespread use.