Determining the Saddle Point in Micromagnetic Models of Magnetization Switching
Gregory Brown, M. A. Novotny, Per Arne Rikvold
Abstract
A numerical model of single-domain nanoscale iron magnets fabricated using scanning-microscope-assisted chemical vapor deposition is simulated using finite-temperature micromagnetics. A Projective-dynamics method is used to determine the magnetization at the saddle point as a function of temperature. This magnetization is found to decrease linearly as the temperature is raised.
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