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https://physrep.ff.bg.ac.rs/handle/123456789/538
Title: | Nonequilibrium athermal random-field Ising model on hexagonal lattices | Authors: | Mijatović, Svetislav Jovković, Dragutin Spasojević, Djordje |
Issue Date: | Mar-2021 | Journal: | Physical review. E | Abstract: | We present the results of a study providing numerical evidence for the absence of critical behavior of the nonequilibrium athermal random-field Ising model in adiabatic regime on the hexagonal two-dimensional lattice. The results are obtained on the systems containing up to 32768×32768 spins and are the averages of up to 1700 runs with different random-field configurations per each value of disorder. We analyzed regular systems as well as the systems with different preset conditions to capture behavior in thermodynamic limit. The superficial insight to the avalanche propagation in this type of lattice is given as a stimulus for further research on the topic of avalanche evolution. With obtained data we may conclude that there is no critical behavior of random-field Ising model on hexagonal lattice which is a result that differs from the ones found for the square and for the triangular lattices supporting the recent conjecture that the number of nearest neighbors affects the model criticality. |
URI: | https://physrep.ff.bg.ac.rs/handle/123456789/538 | ISSN: | 2470-0045 | DOI: | 10.1103/PhysRevE.103.032147 |
Appears in Collections: | Journal Article |
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