Laser Annealing of Garnet Epitaxial Layers under Controlled Atmospheres for Device Applications
Original Publication Date: 1981-Feb-01
Included in the Prior Art Database: 2005-Feb-10
Laser annealing can permanently alter the magnetic properties of Ga-substituted magnetic bubble epitaxial garnet films. Laser annealing such films causes their saturation magnetization (4 pi M(s)) to increase as a function of the applied laser power. This is evidenced in annealed films by a decrease in domain periodicity, and increase in bubble collapse field and changes in the ferromagnetic resonance (FMR) spectra.