1 / f noise in magnetite films
B. Raquet, J.M.D. Coey, et al.
Journal of Applied Physics
Numerical solutions of the micromagnetic Landau-Lifshitz-Gilbert equations provide valuable information at low temperatures ([Formula presented]), but produce egregious errors at higher [Formula presented]. For example, Curie temperatures are often overestimated by an order of magnitude. We show that these errors result from the use of block or coarse-grained variables, without a concomitant renormalization of the system parameters to account for the block size. Renormalization solves the problem of the Curie-point anomaly and improves the accuracy of more complicated micromagnetic simulations, even at low [Formula presented]. © 2003 The American Physical Society.
B. Raquet, J.M.D. Coey, et al.
Journal of Applied Physics
G.A. Held, G. Grinstein, et al.
Physical Review B - CMMP
R.H. Koch, M.B. Ketchen, et al.
Applied Physics Letters
H.K. Olsson, R.H. Koch, et al.
Physical Review Letters