Core structure of screw dislocations in body-centred cubic metals: relation to symmetry and interatomic bonding

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Unraveling the temperature dependence of the yield strength in single-crystal tungsten using atomistically-informed crystal plasticity calculations (2015, background): “The first one is the thermally-activated nature of screw dislocation glide, a consequence of the compact (non-planar) structure of the dislocation core at the atomistic level (Vitek, 2004; Wurster et al., 2010; Li et al., 2012; Samolyuk et al., 2013).”
A phenomenological dislocation mobility law for bcc metals (2016, background): “Originally undistinguished, two different phenomena are now recognized [4,16,19], namely the TAT asymmetry, and the TC asymmetry of the flow stress.”