Magnetization Reversal in Nanoscale Magnetic Films with Perpendicular Anistropy

Authors

Roger D. Kirby, University of Nebraska-LincolnFollow
J.X. Shen, University of Nebraska - Lincoln
Robert J. Hardy, University of Nebraska - LincolnFollow
David J. Sellmyer, University of Nebraska-LincolnFollow

Date of this Version

April 1994

Comments

Published Phys. Rev. B (Rapid Commun.) 49, 10810 (1994). Permission to use.

Abstract

We present experimental results on magnetization reversal for a class of nanoscale magnetic films with perpendicular magnetic anistropy and develop a model that describes a variety of related experiments. In this model the sample is divided into identical single domain cells that interact through dipolar fields and a nearest-neighbor domain-wall interaction. Monte Carlo simulations give insights into the relationship between macroscopic magnetic parameters and the reversal behavior and demonstrate the important role that thermal activation plays in the reversal process.