Experimental Test of Analytic Theory of Spin Torque Oscillator Dynamics

Details Experimental Test of Analytic Theory of Spin Torque Oscillator Dynamics Experimental Test of Analytic Theory of Spin Torque Oscillator Dynamics

2008-12-02

arxiv.org/abs/0812.0541v2

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1103/PhysRevB.79.140404

We make measurements of power spectral density of the microwave voltage emitted by a spin torque nano-oscillator (STNO) and compare our experimental results to predictions of an analytic theory of a single-mode STNO dynamics by V. S. Tiberkevich, A. N. Slavin, J. V. Kim,[Phys. Rev. B 78, 092401 (2008)]. We find that a complete set of the oscillator spectral properties: power, frequency, spectral line width and line shape as functions of current are self-consistently described by the analytic theory for moderate amplitudes of oscillations (< 70 degrees).

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