title: Hysteresis in the antiferromagnetic random-field Ising model at zero temperature.
abstract: We study hysteresis in antiferromagnetic random-field Ising model at zero temperature. The external field is cycled adiabatically between -∞ and ∞. Two different distributions of the random field are considered: (i) a uniform distribution of width 2Δ centered at the origin and (ii) a Gaussian distribution with average value zero and standard deviation σ. In each case the hysteresis loop is determined exactly in one dimension and compared with numerical simulations of the model.
authors.affiliation: Physics Department, North Eastern Hill University, Shillong, India.
authors.forename: Lobisor
authors.initials: L
authors.lastname: Kurbah
authors.forename: Prabodh
authors.initials: P
authors.lastname: Shukla