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Article: Domain wall migration in 3-d in the presence of diffusing impurities
Title | Domain wall migration in 3-d in the presence of diffusing impurities |
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Authors | |
Issue Date | 2002 |
Citation | Interface Science, 2002, v. 10, n. 1, p. 91-98 How to Cite? |
Abstract | A new three-dimensional simulation procedure was developed for domain wall (grain boundary, APB, magnetic, etc.) migration in the presence of diffusing impurities. The simulation is based upon a kinetic Monte Carlo algorithm and an extended Ising model, incorporating both conserved and non-conserved dynamics. The simulations show a dependence of the domain wall velocity on driving force which is very similar to that seen in 2-d and in qualitative agreement with experiment. That is, the presence of a low mobility regime at small driving force and an abrupt transition to a high mobility regime at larger forces, under some conditions, and a continuous, non-linear dependence of the velocity on the force in others. The main qualitative difference between the 2-d and 3-d simulation results is in how the domain wall roughness depends on driving force. The velocity-driving force relation is not consistent with classic continuum models, but may be described, in the high velocity regime, by a theory based upon a discrete version of these models. |
Persistent Identifier | http://hdl.handle.net/10722/303860 |
ISSN | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Mendelev, M. I. | - |
dc.contributor.author | Srolovitz, D. J. | - |
dc.date.accessioned | 2021-09-15T08:26:09Z | - |
dc.date.available | 2021-09-15T08:26:09Z | - |
dc.date.issued | 2002 | - |
dc.identifier.citation | Interface Science, 2002, v. 10, n. 1, p. 91-98 | - |
dc.identifier.issn | 0927-7056 | - |
dc.identifier.uri | http://hdl.handle.net/10722/303860 | - |
dc.description.abstract | A new three-dimensional simulation procedure was developed for domain wall (grain boundary, APB, magnetic, etc.) migration in the presence of diffusing impurities. The simulation is based upon a kinetic Monte Carlo algorithm and an extended Ising model, incorporating both conserved and non-conserved dynamics. The simulations show a dependence of the domain wall velocity on driving force which is very similar to that seen in 2-d and in qualitative agreement with experiment. That is, the presence of a low mobility regime at small driving force and an abrupt transition to a high mobility regime at larger forces, under some conditions, and a continuous, non-linear dependence of the velocity on the force in others. The main qualitative difference between the 2-d and 3-d simulation results is in how the domain wall roughness depends on driving force. The velocity-driving force relation is not consistent with classic continuum models, but may be described, in the high velocity regime, by a theory based upon a discrete version of these models. | - |
dc.language | eng | - |
dc.relation.ispartof | Interface Science | - |
dc.title | Domain wall migration in 3-d in the presence of diffusing impurities | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1023/A:1015145431793 | - |
dc.identifier.scopus | eid_2-s2.0-0036541606 | - |
dc.identifier.volume | 10 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | 91 | - |
dc.identifier.epage | 98 | - |
dc.identifier.isi | WOS:000175061600013 | - |