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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/4526
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dc.contributor.authorSabhapandit, Sanjib-
dc.contributor.authorDhar, Deepak-
dc.contributor.authorShukla, Prabodh-
dc.date.accessioned2012-05-24T03:48:56Z-
dc.date.available2012-05-24T03:48:56Z-
dc.date.issued2002-05-
dc.identifier.citationPhysical Review Letters, 2002, Vol.88, p197202en
dc.identifier.issn0031-9007-
dc.identifier.issn1079-7114 (Online)-
dc.identifier.urihttp://hdl.handle.net/2289/4526-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en
dc.description.abstractWe study hysteresis in the random-field Ising model with an asymmetric distribution of quenched fields, in the limit of low disorder in two and three dimensions. We relate the spin flip process to bootstrap percolation, and show that the characteristic length for self-averaging L* increases as exp[exp(J/Δ)] in 2D, and as exp\{exp[exp(J/Δ)]\} in 3D, for disorder strength Δ much less than the exchange coupling J. For system size 1<<L<L*, the coercive field hcoer varies as 2J-ΔlnlnL for the square lattice, and as 2J-ΔlnlnlnL on the cubic lattice. Its limiting value is 0 for L-->∞ for both square and cubic lattices. For lattices with coordination number 3, the limiting magnetization shows no jump, and hcoer tends to J.en
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.relation.urihttp://arxiv.org/abs/cond-mat/0204618en
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevLett.88.197202en
dc.relation.urihttp://adsabs.harvard.edu/abs/2002PhRvL..88s7202Sen
dc.rights2002 The American Physical Societyen
dc.titleHysteresis in the random-field Ising model and bootstrap percolationen
dc.typeArticleen
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