Magnetic friction due to vortex fluctuation

Details Magnetic friction due to vortex fluctuation Magnetic friction due to vortex fluctuation

2006-04-11

arxiv.org/abs/physics/0604092v1

Physics

Computational Physics

6 pages, 41 figures

Scientific paper

We use Monte Carlo and molecular dynamics simulation to study a magnetic tip-sample interaction. Our interest is to understand the mechanism of heat dissipation when the forces involved in the system are magnetic in essence. We consider a magnetic crystalline substrate composed of several layers interacting magnetically with a tip. The set is put thermally in equilibrium at temperature T by using a numerical Monte Carlo technique. By using that configuration we study its dynamical evolution by integrating numerically the equations of motion. Our results suggests that the heat dissipation in this system is closed related to the appearing of vortices in the sample.

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