The specific heat of thin films near the λ-transition: a Monte Carlo study of an improved three-dimensional lattice model
We study the finite size scaling behaviour of the specific heat of thin films in the neighbourhood of the λ-transition. To this end we have simulated the improved two-component ϕ4 model on the simple cubic lattice. We employ free boundary conditions in the short direction to mimic the vanishing orde...
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| Main Author: | |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
8 October 2009
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| In: |
Journal of statistical mechanics: theory and experiment
Year: 2009, Issue: 10, Pages: 1-37 |
| ISSN: | 1742-5468 |
| DOI: | 10.1088/1742-5468/2009/10/P10006 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1088/1742-5468/2009/10/P10006
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| Author Notes: | Martin Hasenbusch |
MARC
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| 245 | 1 | 4 | |a The specific heat of thin films near the λ-transition |b a Monte Carlo study of an improved three-dimensional lattice model |c Martin Hasenbusch |
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| 520 | |a We study the finite size scaling behaviour of the specific heat of thin films in the neighbourhood of the λ-transition. To this end we have simulated the improved two-component ϕ4 model on the simple cubic lattice. We employ free boundary conditions in the short direction to mimic the vanishing order parameter at the boundaries of a 4He film. Most of our simulations are performed for the thicknesses L0 = 8, 16 and 32 of the film. It turns out that one has to take into account corrections to obtain a good collapse of the finite size scaling functions obtained from different L0. Our results are compared with those obtained from experiments on thin films of 4He near the λ-transition, from field theory and from previous Monte Carlo simulations. | ||
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