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arXiv · 0811.2241

Template nanowires for spintronics applications: nanomagnet microwave resonators functioning in zero applied magnetic field

A. Mourachkine·O. V. Yazyev·C. Ducati·J. -Ph. Ansermet
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Abstract

Low-cost spintronic devices functioning in zero applied magnetic field are required for bringing the idea of spin-based electronics into the real-world industrial applications. Here we present first microwave measurements performed on nanomagnet devices fabricated by electrodeposition inside porous membranes. In the paper, we discuss in details a microwave resonator consisting of three nanomagnets, which functions in zero external magnetic field. By applying a microwave signal at a particular frequency, the magnetization of the middle nanomagnet experiences the ferromagnetic resonance (FMR), and the device outputs a measurable direct current (spin-torque diode effect). Alternatively, the nanodevice can be used as a microwave oscillator functioning in zero field. In order to test the resonators at microwave frequencies, we developed a simple measurement set-up.

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A. Mourachkine, O. V. Yazyev, C. Ducati, J. -Ph. Ansermet. 2008-11-13. Template nanowires for spintronics applications: nanomagnet microwave resonators functioning in zero applied magnetic field. https://doi.org/10.1021/nl801820h

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