Physics – Condensed Matter – Statistical Mechanics
Scientific paper
1995-01-14
J. Phys. A 28 (1995) L165-171
Physics
Condensed Matter
Statistical Mechanics
7 pages, 2 eps-figures, Plain TeX and epsf, minor corrections
Scientific paper
10.1088/0305-4470/28/5/004
The influence of a layered aperiodic modulation of the couplings on the critical behaviour of the two-dimensional Ising model is studied in the case of marginal perturbations. The aperiodicity is found to induce anisotropic scaling. The anisotropy exponent z, given by the sum of the surface magnetization scaling dimensions, depends continuously on the modulation amplitude. Thus these systems are scale invariant but not conformally invariant at the critical point.
Berche Bertrand
Berche Pierre Emmanuel
Henkel Malte
Igloi Ferenc
Lajko Peter
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