Abstract
Original language | English |
---|---|
Article number | P03015 |
Journal | Journal of Statistical Mechanics: Theory and Experiment |
Volume | 2008 |
DOIs | |
Publication status | Published - 28 Mar 2008 |
Fingerprint
Bibliographical note
The full text is not available on the repository.Cite this
First-order transition features of the 3D bimodal random-field Ising model. / Fytas, Nikolaos G.; Malakis, A.; Eftaxias, K.
In: Journal of Statistical Mechanics: Theory and Experiment, Vol. 2008, P03015, 28.03.2008.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - First-order transition features of the 3D bimodal random-field Ising model
AU - Fytas, Nikolaos G.
AU - Malakis, A.
AU - Eftaxias, K.
N1 - The full text is not available on the repository.
PY - 2008/3/28
Y1 - 2008/3/28
N2 - Two numerical strategies based on the Wang–Landau and Lee entropic sampling schemes are implemented to investigate the first-order transition features of the 3D bimodal (± h) random-field Ising model at the strong disorder regime. We consider simple cubic lattices with linear sizes in the range L = 4–32 and simulate the system for two values of the disorder strength: h = 2 and 2.25. The nature of the transition is elucidated by applying the Lee–Kosterlitz free-energy barrier method. Our results indicate that, despite the strong first-order-like characteristics, the transition remains continuous, in disagreement with the early mean-field theory prediction of a tricritical point at high values of the random field.
AB - Two numerical strategies based on the Wang–Landau and Lee entropic sampling schemes are implemented to investigate the first-order transition features of the 3D bimodal (± h) random-field Ising model at the strong disorder regime. We consider simple cubic lattices with linear sizes in the range L = 4–32 and simulate the system for two values of the disorder strength: h = 2 and 2.25. The nature of the transition is elucidated by applying the Lee–Kosterlitz free-energy barrier method. Our results indicate that, despite the strong first-order-like characteristics, the transition remains continuous, in disagreement with the early mean-field theory prediction of a tricritical point at high values of the random field.
U2 - 10.1088/1742-5468/2008/03/P03015
DO - 10.1088/1742-5468/2008/03/P03015
M3 - Article
VL - 2008
JO - Journal of Statistical Mechanics: Theory and Experiment
JF - Journal of Statistical Mechanics: Theory and Experiment
SN - 1742-5468
M1 - P03015
ER -