Localized ferromagnetic resonance force microscopy in permalloy-cobalt films
E. Nazaretski, Yu. Obukhov, I. Martin, D. V. Pelekhov, K. C. Cha, E., Akhadov, P. C. Hammel, and R. Movshovich
TL;DR
This paper demonstrates the use of Ferromagnetic Resonance Force Microscopy (FMRFM) to perform local magnetic spectroscopy on permalloy and cobalt films, achieving micron-scale resolution and validating theoretical models.
Contribution
It introduces FMRFM as a tool for local magnetic property measurement in continuous ferromagnetic films, with quantitative agreement between theory and experiment.
Findings
FMRFM can perform local spectroscopy of ferromagnetic materials.
Achieved micron-scale lateral resolution in magnetic property detection.
Theoretical analysis matches experimental data quantitatively.
Abstract
We report Ferromagnetic Resonance Force Microscopy (FMRFM) experiments on a justaposed continuous films of permalloy and cobalt. Our studies demonstrate the capability of FMRFM to perform local spectroscopy of different ferromagnetic materials. Theoretical analysis of the uniform resonance mode near the edge of the film agrees quantitatively with experimental data. Our experiments demonstrate the micron scale lateral resolution in determining local magnetic properties in continuous ferromagnetic samples.
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Taxonomy
TopicsForce Microscopy Techniques and Applications · Mechanical and Optical Resonators · Magnetic properties of thin films