M.A. Lutz, R.M. Feenstra, et al.
Surface Science
Solving the stochastic Landau-Lifshitz equation numerically, we compute as a function of time t the probability per unit time, Ps (t), that a classical, single-domain magnetic particle with an easy uniaxial anisotropy and a collinear applied magnetic field will reverse its magnetization ("switch") via thermal activation over the energy barrier. The Ps (t) curves increase with t for small t, achieving a maximum at some time τP before decaying exponentially with time constant τD at long time, as per the standard Neel-Brown picture. Both τP and τD increase (the latter exponentially) with increasing barrier height; τP grows logarithmically with τD, consistent with a recent phenomenological "energy-ladder" model, and experiments on submicron-sized magnetic thin films. © 2005 The American Physical Society.
M.A. Lutz, R.M. Feenstra, et al.
Surface Science
U. Wieser, U. Kunze, et al.
Physica E: Low-Dimensional Systems and Nanostructures
Kigook Song, Robert D. Miller, et al.
Macromolecules
S.F. Fan, W.B. Yun, et al.
Proceedings of SPIE 1989