Abstract
The resonance conditions in ferro- and antiferromagnetic resonance absorptions are obtained by the spin-wave theory. According to the usual free spin-wave theory, the resonance frequency is independent of temperature and has only the value at 0°K. The spin-wave interactions give the correct temperature dependence for the resonance frequency. As the results of including these interactions, the ferromagnetic resonance condition taken account of the anisotropy energy agrees with the Kittel's formula. For the cases of the ferromagnetic resonance including the demagnetizing effect, and the antiferromagnetic resonance, however, the resonance conditions obtained at high temperatures agree with the formulae of Kittel and Nagamiya, Keffer-Kittel respectively, but at low temperatures our conditions show the different temperature dependence from their formulae. However, this new theoretical result is not in agreement with the experimental data in MnF 2 by Jaccarino-Shulman and Johnson-Nethercot.
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.
