Kavli Affiliate: Gregory D. Fuchs | Summary:We investigate the low-temperature spin dynamics of epitaxial lithium aluminum ferrite (LAFO) thin films using broadband ferromagnetic resonance (FMR) spectroscopy from 0.44 K to 68 K. The results reveal a crossover from conventional cubic anisotropy-dominated behavior at higher temperatures to pronounced linewidth broadening and higher-order anisotropy contributions at cryogenic […]
Continue.. Low-temperature spin dynamics in LAFO thin films: from cubic anisotropy to TLS-limited coherence