Spatially modulated magnetic structures in thin films
W. Selke, D. Catrein, M. Pleimling
Abstract
The axial next-nearest neighbour Ising (ANNNI) model is studied for thin films of up to L= 10 layers, with a distinct phase diagram for each film thickness. The systematics of the ordered phases, as obtained from mean-field theory, Monte Carlo simulations, and low temperature expansions, is discussed. Results are compared to those for the ANNNI model in the limit L ∞.
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