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Disorder, order, and domain wall roughening in the two-dimensional random field Ising model

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Seppälä, E. T.
dc.contributor.author Petäjä, V.
dc.contributor.author Alava, Mikko J.
dc.date.accessioned 2015-12-02T10:02:48Z
dc.date.available 2015-12-02T10:02:48Z
dc.date.issued 1998
dc.identifier.citation Seppälä, E. T. & Petäjä, V. & Alava, Mikko J. 1998. Disorder, order, and domain wall roughening in the two-dimensional random field Ising model. Physical Review E. Volume 58, Issue 5. R5217-R5220. ISSN 1539-3755 (printed). DOI: 10.1103/physreve.58.r5217. en
dc.identifier.issn 1539-3755 (printed)
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/18937
dc.description.abstract Ground states and domain walls are investigated with exact combinatorial optimization in two-dimensional random field Ising magnets. The ground states break into domains above a length scale that depends exponentially on the random field strength squared. For weak disorder, this paramagnetic structure has remnant long-range order of the percolation type. The domain walls are super-rough in ordered systems with a roughness exponent ζ close to 6/5. The interfaces exhibit rare fluctuations and multiscaling reminiscent of some models of kinetic roughening and hydrodynamic turbulence. en
dc.format.extent R5217-R5220
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Physical Society (APS) en
dc.relation.ispartofseries Physical Review E en
dc.relation.ispartofseries Volume 58, Issue 5
dc.rights © 1998 American Physical Society (APS). This is the accepted version of the following article: Seppälä, E. T. & Petäjä, V. & Alava, Mikko J. 1998. Disorder, order, and domain wall roughening in the two-dimensional random field Ising model. Physical Review E. Volume 58, Issue 5. R5217-R5220. ISSN 1539-3755 (printed). DOI: 10.1103/physreve.58.r5217, which has been published in final form at http://journals.aps.org/pre/abstract/10.1103/PhysRevE.58.R5217. en
dc.subject.other Physics en
dc.title Disorder, order, and domain wall roughening in the two-dimensional random field Ising model en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.rights.holder American Physical Society (APS)
dc.contributor.school Perustieteiden korkeakoulu fi
dc.contributor.school School of Science en
dc.contributor.department Teknillisen fysiikan laitos fi
dc.contributor.department Department of Applied Physics en
dc.subject.keyword random field Ising model en
dc.subject.keyword ground states en
dc.subject.keyword domain walls en
dc.identifier.urn URN:NBN:fi:aalto-201512025467
dc.type.dcmitype text en
dc.identifier.doi 10.1103/physreve.58.r5217
dc.type.version Final published version en


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