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RESEARCH PRODUCT

Dynamical Ising-like model for the two-step spin-crossover systems

Jorge LinaresKamel BoukheddadenF. VarretV. NielEpiphane CodjoviJ. A. Real

subject

PhysicsDifferential equationsIsing model ; Magnetic transitions ; Magnetic relaxation ; Master equation ; Stochastic systems ; Differential equations ; Spin HamiltoniansMagnetic transitionsSpin HamiltoniansStochastic systemsDifferential equationTwo stepUNESCO::FÍSICAGeneral Physics and AstronomyCoupled differential equationssymbols.namesakeFormalism (philosophy of mathematics)Spin crossover:FÍSICA [UNESCO]Master equationIsing modelsymbolsIsing modelStatistical physicsMaster equationHamiltonian (quantum mechanics)Magnetic relaxation

description

In order to reproduce the two-step relaxation observed experimentally in spin-crossover systems, we investigate analytically the static and the dynamic properties of a two-sublattice Ising-like Hamiltonian. The formalism is based on a stochastic master equation approach. It is solved in the mean-field approximation, and yields two coupled differential equations that correspond to the HS fractions of the sublattices A and B. Virginie.Niel@uv.es ; Jose.A.Real@uv.es

yearjournalcountryeditionlanguage
2003-05-15
10.1063/1.1540038http://hdl.handle.net/10550/12857