Magnetic vortex gyration mediated by point-contact position
Li Hua-Nan, Fan Zi-Wei, Li Jia-Xin, Hu Yue, Liu Hui-Lian †
       

Plots of eigenfrequency versus current density j for (a) the same R and different values of L, for (b) the same L and different values of R, (c) plots of eigenfrequency versus point-contact position Rd for the same R and different values of L.