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Phase diagrams of Ising films with competing interactions |
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| Authors: | W Selke M Pleimling D Catrein |
| Institution: | Institut für Theoretische Physik, Technische Hochschule, 52056 Aachen, Germany, DE Institut für Theoretische Physik I, Universit?t Erlangen-Nürnberg, 91058 Erlangen, Germany, DE LFG Stochastik, Technische Hochschule, 52056 Aachen, Germany, DE |
| Abstract: | The axial next-nearest-neighbour Ising (ANNNI) model of finite thickness is studied. Using mean-field theory, Monte Carlo simulations, and low-temperature analyses, phase diagrams are determined, with a distinct phase diagram for each film thickness. The robustness of the phase diagrams against varying the couplings in the surface layers is analysed. Received 19 March 2002 and Received in final form 2 April 2002 Published online 6 June 2002 |
| Keywords: | PACS 68 35 Rh Phase transitions and critical phenomena – 75 70 Ak Magnetic properties of monolayers and thin films – 64 70 Rh Commensurate-incommensurate transitions |
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