Monte Carlo study of specific heat of KEr(MoO4)(2) - Quasi-one-dimensionalIsing ferromagnet

Two dimensional Blume-Capel model for the spin S = 3/2, with anisotropic ex change coupling J(1),J(2) and crystal field anisotropy D was applied to sim ulate the specific heat of KEr(MoO4)(2) at helium temperatures. The promisi ng agreement of the Monte Carlo results with the experimental data was atta ined for the parameters J(1)/k(B) = 0.378K, J(2)/k(B) = -0.071K and D/k(B) = 10K.