Discretisation originated Peierls–Nabarro barriers in simulations of ferroelectrics
Sign Up to like & getrecommendations! Published in 2018 at "Phase Transitions"
DOI: 10.1080/01411594.2018.1515434
Abstract: ABSTRACT We have analysed domain-wall-motion-related energy barriers, which originate from the regular discretisation grid utilised in phase-field simulations of ferroelectric materials. We develop three approaches to determine the barrier height, and we demonstrate these on… read more here.
Keywords: barriers simulations; originated peierls; nabarro barriers; discretisation originated ... See more keywords
Non-singular dislocation continuum theories: strain gradient elasticity vs. Peierls–Nabarro model
Sign Up to like & getrecommendations! Published in 2017 at "Philosophical Magazine"
DOI: 10.1080/14786435.2017.1375608
Abstract: Abstract Non-singular dislocation continuum theories are studied. A comparison between Peierls–Nabarro dislocations and straight dislocations in strain gradient elasticity is given. The non-singular displacement fields, non-singular stresses, plastic distortions and dislocation core shapes are analysed… read more here.
Keywords: strain gradient; dislocation; gradient elasticity; peierls nabarro ... See more keywords