Trajectory and frequency of vortex gyration in a multi-nanocontact geometry<xref ref-type="fn" rid="cpb142478fn1">*</xref>

Trajectory and frequency of vortex gyration in a multi-nanocontact geometry*

Li Hua-Nan^a),^b), Liu Yan^a)†, Jia Min^a), Du An^a)

Schematic of the model system. The polarized currents are applied via three nanocontacts represented by white cylinders with radius R _c. The radius of the Py nanodisk is R and its thickness is L . The ground state for the Py disk is a vortex with ( p , c ) = (1, 1), with p and c indicated by the out-of-plane cone and the white arrow, respectively.