Double Polishing 3" Hexagonal LaAlO3 Substrate Crystal Chemical Stable

Good Lattice Matching Low Dielectric Loss LaAlO3 Crystal Wafer

1. LaAlO3 Crystal Introduction :

Lanthanum aluminate crystal(chemical formula: LaAlO3) belongs to the hexagonal crystal system. It is an important substrate material. It has a good lattice matching with a variety of perovskite structural materials. LaAlO3 is an excellent substrate material for the epitaxial growth of high-temperature superconducting films and giant magnetic films. Czochralski method is usually used for LaAlO3 crystal growth.

2.Lanthanum Aluminate Specification

3.Main Advantages of LaAlO3:

• wide energy gap;
• large specific surface area;
• certain activity;
• good thermal stability
• small dielectric constant;
• low dielectric loss;
• good lattice matching;
• small thermal expansion coefficient;
• good chemical stability;