Fig. 4: Distribution of binding energies between a straight screw dislocation and a hydrogen atom.
From: Hydrogen can both move or pin dislocations in body-centered cubic metals
a Binding energies as a function of hydrogen relative positions with respect to dislocation core. X is along <112> crystal direction, while Y is along <110> crystal direction. Color indicates the binding strength as marked on the color bar. b Binding energies as a function of hydrogen distance relative to dislocation core. Three strong binding sites at short distances are marked as S1, S2, and S3. Binding energies are defined as the energy difference between bound configuration and unbound configuration (hydrogen and dislocation are well separated). Source data is provided as a Source Data file.
