{ "id": "1805.05725", "version": "v1", "published": "2018-05-15T12:20:45.000Z", "updated": "2018-05-15T12:20:45.000Z", "title": "Logarithm corrections in the critical behavior of the Ising model on a triangular lattice modulated with the Fibonacci sequence", "authors": [ "T. F. A. Alves", "G. A. Alves", "M. S. Vasconcelos" ], "comment": "17 pages, 9 figures", "categories": [ "cond-mat.dis-nn" ], "abstract": "We investigated the critical behavior of the Ising model in a triangular lattice with ferro and anti-ferromagnetic interactions modulated by the Fibonacci sequence, by using finite-size numerical simulations. Specifically, we used a replica exchange Monte Carlo method, known as Parallel Tempering, to calculate the thermodynamic quantities of the system. We have obtained the staggered magnetization $q$, the associated magnetic susceptibility ($\\chi$) and the specific heat $c$, to characterize the universality class of the system. At the low-temperature limit, we have obtained a continuous phase transition with a critical temperature around $T_{c} \\approx 1.4116$ for a particular modulation of the lattice according to the Fibonacci letter sequence. In addition, we have used finite-size scaling relations with logarithmic corrections to estimate the critical exponents $\\beta$, $\\gamma$ and $\\nu$, and the correction exponents $\\hat{\\beta}$, $\\hat{\\gamma}$, $\\hat{\\alpha}$ and $\\hat{\\lambda}$. Our results show that the system obeys the Ising model universality class and that the critical behavior has logarithmic corrections.", "revisions": [ { "version": "v1", "updated": "2018-05-15T12:20:45.000Z" } ], "analyses": { "keywords": [ "critical behavior", "ising model", "fibonacci sequence", "triangular lattice", "logarithm corrections" ], "note": { "typesetting": "TeX", "pages": 17, "language": "en", "license": "arXiv", "status": "editable" } } }