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dc.contributor.author
Bustingorry, Sebastián
dc.contributor.author
Guyonnet, J.
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Paruch, P.
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Agoritsas, E.
dc.date.available
2022-12-19T15:08:39Z
dc.date.issued
2021-07
dc.identifier.citation
Bustingorry, Sebastián; Guyonnet, J.; Paruch, P.; Agoritsas, E.; A numerical study of the statistics of roughness parameters for fluctuating interfaces; IOP Publishing; Journal of Physics: Condensed Matter; 33; 34; 7-2021; 345001-345012
dc.identifier.issn
0953-8984
dc.identifier.uri
http://hdl.handle.net/11336/181756
dc.description.abstract
Self-affine rough interfaces are ubiquitous in experimental systems, and display characteristic scaling properties as a signature of the nature of disorder in their supporting medium, i.e. of the statistical features of its heterogeneities. Different methods have been used to extract roughness information from such self-affine structures, and in particular their scaling exponents and associated prefactors. Notably, for an experimental characterization of roughness features, it is of paramount importance to properly assess sample-to-sample fluctuations of roughness parameters. Here, by performing scaling analysis based on displacement correlation functions in real and reciprocal space, we compute statistical properties of the roughness parameters. As an ideal, artifact-free reference case study and particularly targeting finite-size systems, we consider three cases of numerically simulated one-dimensional interfaces: (i) elastic lines under thermal fluctuations and free of disorder, (ii) directed polymers in equilibrium with a disordered energy landscape, and (iii) elastic lines in the critical depinning state when the external applied driving force equals the depinning force set by disorder. Our results show that sample-to-sample fluctuations are rather large when measuring the roughness exponent. These fluctuations are also relevant for roughness amplitudes. Therefore a minimum of independent interface realizations (at least a few tens in our numerical simulations) should be used to guarantee sufficient statistical averaging, an issue often overlooked in experimental reports.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
IOP Publishing
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
DOMAIN WALLS
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INTERFACES
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ROUGHNESS
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Física de los Materiales Condensados
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
A numerical study of the statistics of roughness parameters for fluctuating interfaces
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-10-04T14:43:47Z
dc.journal.volume
33
dc.journal.number
34
dc.journal.pagination
345001-345012
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Bustingorry, Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología - Nodo Bariloche | Comisión Nacional de Energía Atómica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología - Nodo Bariloche; Argentina
dc.description.fil
Fil: Guyonnet, J.. Universidad de Ginebra. Facultad de Ciencias. Sección de Física; Suiza
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Fil: Paruch, P.. Universidad de Ginebra. Facultad de Ciencias. Sección de Física; Suiza
dc.description.fil
Fil: Agoritsas, E.. École Polytechnique Fédérale de Lausanne; Suiza
dc.journal.title
Journal of Physics: Condensed Matter
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/1361-648X/ac0b20
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1088/1361-648X/ac0b20
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