Abstract
We report some experimental results on the ferromagnetic relaxation in single crystals of In-substituted BiCa VIG. These crystals, grown in our laboratory exhibit very attractive properties from the practical point of view, e.g. low anisotropy, low resonance linewidth and low saturation magnetization. We measured the temperature dependence of the resonance linewidth ΔH at X-band from liquid He to room temperature. It was found that there was a low-temperature peak in ΔH near 12 K. This is quite different from the results reported for many other garnets. We suggest that this is due to the ’’intra-ionic slow relaxation’’ mechanism of the valence-change vanadium ions in In-BiCaVIG. The linewidth ΔH was also measured as function of frequency from 0.5 GHz to 10 GHz and the Sparks-Loudon-Kittel two-magnon linewidth peak was observed. In this frequency range, ΔH had a general tendency to increase linearly with increasing frequency except in the vicinity of the peak.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
