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Dislocation-point defect interaction on plasticity across the length scale in SrTiO3
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DOI：10.1016/j.jmat.2026.101232.png)
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Abstract
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• Multiscale study reveals Nb-doping regulates dislocation-based plasticity in SrTiO3 • 0.5 wt% Nb-SrTiO3 suppresses dislocation motion due to sluggish Sr vacancies • O vacancies in nominally undoped SrTiO3 promote easier dislocation nucleation • Defect chemistry enables tunable mechanical response in functional oxides
Keywords:
dislocation in oxides
multi-scale plasticity
donor doping
SrTiO3
mechanical deformation
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