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Titolo:
A CLASSICAL ISING-MODEL AND MAGNETIC VISCOSITY IN THIN-FILMS
Autore:
EILON MG; THOMPSON PJ; GEOGHEGAN DS; STREET R;
Indirizzi:
UNIV WESTERN AUSTRALIA,DEPT PHYS NEDLANDS WA 6907 AUSTRALIA
Titolo Testata:
Journal of magnetism and magnetic materials
fascicolo: 3, volume: 175, anno: 1997,
pagine: 249 - 254
SICI:
0304-8853(1997)175:3<249:ACIAMV>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Keywords:
ISING MODEL; STONER-WOHLFARTH PARTICLE; CLASSICAL SPIN SYSTEM; MAGNETIC VISCOSITY; THIN FILM; MONTE CARLO ALGORITHM;
Tipo documento:
Article
Natura:
Periodico
Citazioni:
12
Recensione:
Indirizzi per estratti:
Citazione:
M.G. Eilon et al., "A CLASSICAL ISING-MODEL AND MAGNETIC VISCOSITY IN THIN-FILMS", Journal of magnetism and magnetic materials, 175(3), 1997, pp. 249-254

Abstract

In order to investigate magnetic viscosity in thin films, a two-dimensional single phase classical Ising model was constructed with the standard Ising Hamiltonian modified to include an additional uniaxial anisotropy term. Variation of magnetisation with time using this model was calculated by a Monte Carlo simulation on a 100 x 100 lattice with nearest neighbour interactions. The Monte Carlo algorithm developed forthe modified Hamiltonian shows magnetic viscosity towards the anhysteretic state on major loops, and viscosity initially away from the anhysteretic state on minor (recoil) loops. This latter viscosity has onlybeen experimentally observed in two-phase exchange-spring magnets, whilst our model is a single-phase system.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 04:33:12