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http://hdl.handle.net/2445/10563
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DC Field | Value | Language |
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dc.contributor.author | Illa i Tortós, Xavier | cat |
dc.contributor.author | Rosinberg, Martin-Luc | cat |
dc.contributor.author | Vives i Santa-Eulàlia, Eduard | cat |
dc.date.accessioned | 2009-12-28T09:22:50Z | - |
dc.date.available | 2009-12-28T09:22:50Z | - |
dc.date.issued | 2006 | cat |
dc.identifier.issn | 0163-1829 | cat |
dc.identifier.uri | http://hdl.handle.net/2445/10563 | - |
dc.description.abstract | We investigate the influence of the driving mechanism on the hysteretic response of systems with athermal dynamics. In the framework of local mean-field theory at finite temperature (but neglecting thermally activated processes), we compare the rate-independent hysteresis loops obtained in the random field Ising model when controlling either the external magnetic field H or the extensive magnetization M. Two distinct behaviors are observed, depending on disorder strength. At large disorder, the H-driven and M-driven protocols yield identical hysteresis loops in the thermodynamic limit. At low disorder, when the H-driven magnetization curve is discontinuous (due to the presence of a macroscopic avalanche), the M-driven loop is reentrant while the induced field exhibits strong intermittent fluctuations and is only weakly self-averaging. The relevance of these results to the experimental observations in ferromagnetic materials, shape memory alloys, and other disordered systems is discussed. | eng |
dc.format.extent | 10 p. | cat |
dc.format.mimetype | application/pdf | eng |
dc.language.iso | eng | eng |
dc.publisher | The American Physical Society | eng |
dc.relation.isformatof | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.74.224403 | cat |
dc.relation.ispartof | Physical Review B, 2006, vol. 74, núm. 22, p. 224403-1-224403-10 | eng |
dc.relation.uri | http://dx.doi.org/10.1103/PhysRevB.74.224403 | - |
dc.rights | (c) The American Physical Society, 2006 | eng |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Histèresi | cat |
dc.subject.classification | Model d'Ising | cat |
dc.subject.classification | Mecànica estadística | cat |
dc.subject.other | Hysteresis | eng |
dc.subject.other | Ising model | eng |
dc.subject.other | Statistical mechanics | eng |
dc.title | Influence of the driving mechanism on the response of systems with athermal dynamics: The example of the random-field Ising model | eng |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 546515 | cat |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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546515.pdf | 918.81 kB | Adobe PDF | View/Open |
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