Simulation of the Interaction of a Magnetic Resonance Force Microscope Probe with a Ferromagnetic Sample
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We propose an algorithm and present results of micromagnetic simulation of the resonant response of a probe pickup (cantilever) of a magnetic resonance force microscope. Simulation of induced oscillations of sample magnetization makes it possible to calculate the varying component of the force exerted on the probe by the sample and to construct spectra in the form of dependences of the amplitude of oscillations of the cantilever on the external magnetic field strength. Simulation of time dependences of all magnetization field components makes it possible to analyze the spatial distributions of spin-wave resonances of samples. For test objects in the form of rectangular permalloy microstrips, good agreement between model and experimental spectra is achieved.
This study was performed under State assignment for the Institute for Physics of Microstructures, Russian Academy of Sciences, for 2019 (GZ 0030-2019-0021-S-01) and by the Russian Foundation for Basic Research (project no. 18-02-00247).
CONFLICT OF INTEREST
The authors claim that there are no conflicts of interest.
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