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Hysteresis in an Ising model with mobile bonds (CROSBI ID 110697)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Čapeta, Davor ; Sunko, Denis K. Hysteresis in an Ising model with mobile bonds // Journal of magnetism and magnetic materials, 292 (2005), 359-366-x

Podaci o odgovornosti

Čapeta, Davor ; Sunko, Denis K.

engleski

Hysteresis in an Ising model with mobile bonds

Hysteresis is studied in a disordered Ising model in which diffusion of antiferromagnetic bonds is allowed in addition to spin flips. Saturation behavior changes to a figure-eight loop when diffusion is introduced. The upper and lower fields delimiting the figure-eight are determined by the Hamiltonian, while its surface and the crossing point depend on the temperature and details of the dynamics. The main avalanche is associated with the disappearance of hidden order. Some experimental observations of figure-eight anomalies are discussed. It is argued they are a signal of a transient rearrangement of domain couplings, characteristic of amorphous and/or magnetically soft samples, and similar to evolution of kinetic glasses.

hysteresis; Ising model; glass

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Podaci o izdanju

292

2005.

359-366-x

objavljeno

0304-8853

Povezanost rada

Fizika

Poveznice
Indeksiranost