A direct electrical current can drive high-frequency oscillations of the magnetization of a nanomagnet. A current-tunable microwave oscillator has now been demonstrated that shows large-amplitude oscillations.
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Kent, A. A nanomagnet oscillator. Nature Mater 6, 399–400 (2007). https://doi.org/10.1038/nmat1917
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DOI: https://doi.org/10.1038/nmat1917
