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Resonances in Ferromagnetic Gratings Detected by Microwave Photoconductivity

Y. S. Gui·S. Holland·N. Mecking·C. -M. Hu
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Abstract

We investigate the impact of microwave excited spin excitations on the DC charge transport in a ferromagnetic (FM) grating. We observe both resonant and nonresonant microwave photoresistance. Resonant features are identified as the ferromagnetic resonance (FMR) and ferromagnetic antiresonance (FMAR). A macroscopic model based on Maxwell and Landau-Lifschitz equations reveals the macroscopic nature of the FMAR. The experimental approach and results provide new insight in the interplay between photonic, spintronic, and charge effects in FM microstructures.

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Y. S. Gui, S. Holland, N. Mecking, C. -M. Hu. 2005-02-18. Resonances in Ferromagnetic Gratings Detected by Microwave Photoconductivity. https://doi.org/10.1103/physrevlett.95.056807

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