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

Plots of critical current density of gyration jg versus Rd (a) for nanodisks with the same R and different values of L, and (b) for the nanodisks with the same L and different values of R.