75 citations · 268 across the 10 of their papers we have counts for
10 papers
The Sherrington-Kirkpatrick spin glass model in the presence of a random field with a joint Gaussian probability density function for the exchange interactions and random fields
Ioannis A. Hadjiagapiou
The magnetic systems with disorder form an important class of systems, which are under intensive studies, since they reflect real systems. Such a class of systems is the spin glass…
The random field Ising model with an asymmetric trimodal probability distribution
I. A. Hadjiagapiou
The Ising model in the presence of a random field is investigated within the mean field approximation based on Landau expansion. The random field is drawn from the trimodal probabi…
The random field Ising model with an asymmetric and anisotropic trimodal probability distribution
Ioannis A. Hadjiagapiou
The Ising model in the presence of a random field, drawn from the asymmetric and anisotropic trimodal probability distribution $P(h_{i})=p\; δ(h_{i}-h_{0}) + q δ(h_{i}+ λ*h_{0}) +…
Effective field theory for the Ising model with a fluctuating exchange integral in an asymmetric bimodal random magnetic field: A differential operator technique
Ioannis A. Hadjiagapiou
The spin-1/2 Ising model on a square lattice, with fluctuating bond interactions between nearest neighbors and in the presence of a random magnetic field, is investigated within th…
Multicritical Points and Crossover Mediating the Strong Violation of Universality: Wang-Landau Determinations in the Random-Bond Blume-Capel model
A. Malakis, A. Nihat Berker, I. A. Hadjiagapiou +2
The effects of bond randomness on the phase diagram and critical behavior of the square lattice ferromagnetic Blume-Capel model are discussed. The system is studied in both the pur…
Uncovering the secrets of the 2d random-bond Blume-Capel model
A. Malakis, A. Nihat Berker, I. A. Hadjiagapiou +2
The effects of bond randomness on the ground-state structure, phase diagram and critical behavior of the square lattice ferromagnetic Blume-Capel (BC) model are discussed. The calc…