Extended Data Table 1 Experimental observation of anomalous slip in different pure BCC metals

From: Anomalous slip in body-centred cubic metals

  1. V, Nb and Mo exhibit similar properties, namely (i) anomalous slip slightly below the athermal temperature of the Peierls mechanism, that is, in a large part of the temperature domain of the Peierls mechanism, and (ii) evidences of two dislocation families in the anomalous plane either by TEM (noted “two b’s”) or via slip line observations showing no dead band (noted “no dead band”)13,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60. Anomalous slip is similar but appears a little bit more difficult in Ta where lower temperatures are required, namely temperatures substantially lower than the athermal temperature of the Peierls mechanism. This latter difference appears clearly in the direct comparison of Nb and Ta by Wasserbäch13. For W, anomalous slip is reported in the work of Kaun et al.4, although the term was not yet established, and more recently in the work of Marichal et al.5. Anomalous slip has been observed only very recently in Cr by Holzer et al.21. Remarkably, Fe exhibits no anomalous slip at all.
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