F. Abreu Araujo, L. Piraux, V. A. Antohe, V. Cros, L. Gence
A combined bottom-up assembly of electrodeposited nanowires and electron beam lithography technique has been developed to investigate the spin transfer torque and microwave emission on specially designed nanowires containing a single Co/Cu/Co pseudo spin valve. The results show a high frequency vs. magnetic field tunability and are in good agreement with micromagnetic simulations done in a previous work. Furthermore, signals have been obtained even at zero magnetic field and the frequency vs. magnetic field tunability has been strongly enhanced by playing with the relative direction between the applied magnetic field and the magnetic layers plane inside the pseudo spin valve.
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http://arxiv.org/abs/1301.3431
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