Magnesium oxide is an excellent single-crystal substrate for thin films of ferromagnetic, photo-electronic, and high Tc superconductor materials.
MSC 072 (OTTO) Magnesium oxide (single crystal substrate), <100>, ≥99.9% trace metals basis, L × W × thickness 10 mm × 10 mm × 0.2 mm - used widely as substrates for various thin film applications.