Evidence for Fisher renormalization in the compressible phi(4)-model
- Author(s)
- Andreas Tröster
- Abstract
We present novel Fourier Monte Carlo simulations of a compressible phi(4)-model on a simple-cubic lattice with linear-quadratic coupling of order parameter and strain, focusing on the detection of fluctuation-induced first-order transitions and deviations from standard critical behavior. The former is indeed observed in the constant stress ensemble and for auxetic systems at constant strain, while for regular isotropic systems at constant strain, we find strong evidence for Fisher-renormalized critical behavior and are led to predict the existence of a tricritical point.
- Organisation(s)
- Computational and Soft Matter Physics
- Journal
- Physical Review Letters
- Volume
- 100
- No. of pages
- 4
- ISSN
- 0031-9007
- DOI
- https://doi.org/10.1103/PhysRevLett.100.140602
- Publication date
- 2008
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103009 Solid state physics, 103029 Statistical physics
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/evidence-for-fisher-renormalization-in-the-compressible-phi4model(729814ed-6984-4000-af0a-8e2d68184d5b).html