Correction to: Nature Materials https://doi.org/10.1038/s41563-019-0518-x, published online 4 November 2019.

In the version of this Letter originally published, James G. Analytis was incorrectly indicated as an equally contributing author. Also, in the PDF version, the text ‘However, only the antidamping term has \({\mathbf{p}} = {\hat{\mathbf z}} \times {\mathbf{J}}\) parallel to the applied current pulse J’ should have read ‘However, only the antidamping term has \({\mathbf{B}}_{{\mathrm{eff}}}^{{\mathrm{AD}}}\) parallel to the applied current pulse J’; this text was correct in the original HTML version. These issues have now been corrected.