Dual-frequency ferromagnetic resonance
Yongfeng Guan, William E. Bailey
TL;DR
This paper introduces a novel experimental method for studying coupling effects in ferromagnetic resonance by simultaneously exciting and detecting dual FMR frequencies using broadband RF circuits and lock-in detection.
Contribution
The paper presents a new technique for dual-frequency FMR excitation and detection, enabling detailed analysis of coupling effects in ferromagnetic materials.
Findings
Successful simultaneous excitation of dual FMR frequencies
Selective detection using lock-in amplifier at separate modulation frequencies
Potential for advanced studies of magnetic layer interactions
Abstract
We describe a new experimental technique to investigate coupling effects between different layers or modes in ferromagnetic resonance (FMR). Dual FMR frequencies are excited (2-8 GHz) simultaneously and detected selectively in a broadband RF circuit, using lock-in amplifier detection at separate modulation frequencies.
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