Trajectory and frequency of vortex gyration in a multi-nanocontact geometry |
(a) and (b) The Fourier spectra of 〈 m x 〉 dependence on the current density and contact distance for ( i p1, i p0, i p2) = (−1, 1, −1) and for ( i p1, i p0, i p2) = (1, 1,−1), respectively. |