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arXiv · 0808.2281

Attempt frequency of magnetization in nanomagnets with thin-film geometry

Hong-Ju Suh·Changehoon Heo·Chun-Yeol You·Woojin Kim·Taek-Dong Lee·Kyung-Jin Lee
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Abstract

Solving the stochastic Landau-Lifshitz-Gilbert equation numerically, we investigate the effect of the potential landscape on the attempt frequency of magnetization in nanomagnets with the thin-film geometry. Numerical estimates of the attempt frequency are analyzed in comparison with theoretical predictions from the Fokker-Planck equation for the Neel-Brown model. It is found that for a nanomagnet with the thin-film geometry, theoretically predicted values for the universal case are in excellent agreement with numerical estimates.

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Hong-Ju Suh, Changehoon Heo, Chun-Yeol You, Woojin Kim, Taek-Dong Lee, Kyung-Jin Lee. 2008-08-17. Attempt frequency of magnetization in nanomagnets with thin-film geometry. https://doi.org/10.1103/physrevb.78.064430

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