Thermodynamic behavior of nanomagnets with a vortex configuration | Zendy

Robert Wieser | Zendy; K. D. Usadel | Zendy; U. Nowak | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Thermodynamic behavior of nanomagnets with a vortex configuration

Author(s) -

Robert Wieser,

K. D. Usadel,

U. Nowak

Publication year - 2006

Publication title -

physical review b

Language(s) - English

Resource type - Journals

eISSN - 1538-4489

pISSN - 1098-0121

DOI - 10.1103/physrevb.74.094410

Subject(s) - nanomagnet , vortex , condensed matter physics , metastability , magnetization , superparamagnetism , physics , core (optical fiber) , ferromagnetism , micromagnetics , thermodynamic equilibrium , field (mathematics) , materials science , magnetic field , thermodynamics , quantum mechanics , mathematics , pure mathematics , optics

The thermodynamic behavior of flat circular nanomagnets with a vortex domain configuration is studied using Langevin dynamics simulations for the dynamical behavior as well as local mean-field calculations for equilibrium properties. Our studies show that the vortex core becomes thermally unstable with increasing temperature, acting like a superparamagnetic system. On time scales where the vortex core remains within one of the metastable states it still has a stronger temperature dependence than the magnetization far away in the bulk of a domain.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research