Abstract
In this work, we present the influence of the curvature of magnetic nanodot on the vortex gyrotropic mode frequency. We show that gyrotropic oscillation of the magnetic vortices is highly influenced by the rounding of the nanodot shape due to the formation of the apex and single domain state in the upper part of the dot. The curved shape of nanodot could arise during the fabrication process of the nanodots, i.e., during lithography. We find that strong dependence of the gyrotropic mode frequency on curvature parameter is related to magnetic phase transition: from vortex to out-of-plane state. The found effect can be used, e.g., for the design of the spin torque nano oscillators.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
