Switching of the vortex polarity in a magnetic nanodisk by a DC current
Denis D. Sheka, Yuri Gaididei, Franz G. Mertens
TL;DR
This paper investigates how a direct current can induce irreversible switching of vortex polarity in a magnetic nanodisk, using spin-lattice simulations to detail the process.
Contribution
It provides a detailed simulation-based analysis of vortex polarity switching driven by DC current in magnetic nanodisks, highlighting the threshold current for switching.
Findings
Vortex polarity can be irreversibly switched by a DC current.
Switching occurs above a specific threshold current.
Spin-lattice simulations effectively describe the switching process.
Abstract
We study the dynamics of a vortex state nanodisk due to a dc spin current, perpendicular to the disk plane. The irreversible switching of the vortex polarity takes place above some threshold current. The detailed description of these processes is obtained by spin-lattice simulations.
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