Abstract
Nonlinear ferromagnetic-resonance phenomena in tangentially magnetized yttrium-iron-garnet films are studied. The auto-oscillation and the fine-structure phenomena are found to appear and disappear simultaneously. The auto-oscillation frequency changes with the d.c. field within the range of a single fine-structure peak. Data analysis implies that this peak does not represent a single spin-wave mode but many groups of spin waves. This inhomogeneous broadening and the inter peak spacing are analyzed and explained in terms of conventional dispersion relations. A careful recording of the lineshape shows that it is essentially a rectangle. An attempt to explain this shape in terms of Suhl's theory is made. These findings support the assertion that a fine-structure peak is due to a fine dip in the butterfly curve and usually represents many groups of parametrically excited spin waves.
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.
