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dc.contributor.authorZhou, Caizhien_US
dc.contributor.authorSu, Jung-Jungen_US
dc.contributor.authorGraf, Matthias J.en_US
dc.contributor.authorReichhardt, Charlesen_US
dc.contributor.authorBalatsky, Alexander V.en_US
dc.contributor.authorBeyerlein, Irene J.en_US
dc.date.accessioned2019-04-03T06:43:45Z-
dc.date.available2019-04-03T06:43:45Z-
dc.date.issued2013-07-24en_US
dc.identifier.issn1098-0121en_US
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevB.88.024513en_US
dc.identifier.urihttp://hdl.handle.net/11536/22179-
dc.description.abstractWe develop a model for the gliding of dislocations and plasticity in solid He-4. This model takes into account the Peierls barrier, multiplication and interaction of dislocations, as well as classical thermally and mechanically activated processes leading to dislocation glide. We specifically examine the dc stress-strain curve and how it is affected by temperature, strain rate, and dislocation density. As a function of temperature and shear strain, we observe plastic deformation and discuss how this may be related to the experimental observation of elastic anomalies in solid hcp He-4 that have been discussed in connection with the possibility of supersolidity or giant plasticity. Our theory gives several predictions for the dc stress strain curves, for example, the yield point and the change in the work-hardening rate and plastic dissipation peak, that can be compared directly to constant strain-rate experiments and thus provide bounds on model parameters.en_US
dc.language.isoen_USen_US
dc.titlePlastic response of dislocation glide in solid helium under dc strain-rate loadingen_US
dc.typeArticleen_US
dc.identifier.doi10.1103/PhysRevB.88.024513en_US
dc.identifier.journalPHYSICAL REVIEW Ben_US
dc.citation.volume88en_US
dc.citation.issue2en_US
dc.citation.spage0en_US
dc.citation.epage0en_US
dc.contributor.department電子物理學系zh_TW
dc.contributor.departmentDepartment of Electrophysicsen_US
dc.identifier.wosnumberWOS:000322215700004en_US
dc.citation.woscount7en_US
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