Dynamical transitions and sliding friction of the phase-field-crystal model with pinning

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorRamos, J. A. P.
dc.contributor.authorGranato, E.
dc.contributor.authorYing, S. C.
dc.contributor.authorAchim, C. V.
dc.contributor.authorElder, K. R.
dc.contributor.authorAla-Nissilä, Tapio
dc.contributor.departmentTeknillisen fysiikan laitosfi
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.schoolPerustieteiden korkeakoulufi
dc.contributor.schoolSchool of Scienceen
dc.date.accessioned2015-04-28T09:43:15Z
dc.date.available2015-04-28T09:43:15Z
dc.date.issued2010
dc.description.abstractWe study the nonlinear driven response and sliding friction behavior of the phase-field-crystal (PFC) model with pinning including both thermal fluctuations and inertial effects. The model provides a continuous description of adsorbed layers on a substrate under the action of an external driving force at finite temperatures, allowing for both elastic and plastic deformations. We derive general stochastic dynamical equations for the particle and momentum densities including both thermal fluctuations and inertial effects. The resulting coupled equations for the PFC model are studied numerically. At sufficiently low temperatures, we find that the velocity response of an initially pinned commensurate layer shows hysteresis with dynamical melting and freezing transitions for increasing and decreasing applied forces at different critical values. The main features of the nonlinear response in the PFC model are similar to the results obtained previously with molecular dynamics simulations of particle models for adsorbed layers.en
dc.description.versionPeer revieweden
dc.format.extent011121/1-7
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRamos, J. A. P. & Granato, E. & Ying, S. C. & Achim, C. V. & Elder, K. R. & Ala-Nissilä, Tapio. 2010. Dynamical transitions and sliding friction of the phase-field-crystal model with pinning. Physical Review E. Volume 81, Issue 1. P. 011121/1-7. ISSN 1539-3755 (printed). DOI: 10.1103/physreve.81.011121.en
dc.identifier.doi10.1103/physreve.81.011121
dc.identifier.issn1539-3755 (printed)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/15778
dc.identifier.urnURN:NBN:fi:aalto-201504272438
dc.language.isoenen
dc.publisherAmerican Physical Society (APS)en
dc.relation.ispartofseriesPhysical Review Een
dc.relation.ispartofseriesVolume 81, Issue 1
dc.rights© 2010 American Physical Society (APS). http://www.aps.orgen
dc.rights.holderAmerican Physical Society (APS)
dc.subject.keywordphase field crystal modelen
dc.subject.keywordPFCen
dc.subject.keywordadsorbed layers slidingen
dc.subject.otherPhysicsen
dc.titleDynamical transitions and sliding friction of the phase-field-crystal model with pinningen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.dcmitypetexten
dc.type.versionFinal published versionen
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
A1_ramos_j._a._p._2010.pdf
Size:
537.17 KB
Format:
Adobe Portable Document Format