Correction to: Nature Materials https://doi.org/10.1038/s41563-020-00911-2, published online 15 February 2021.

In the version of this Article originally published, some of the Chern numbers had incorrect signs.

In Fig. 3b, the top-left label was incorrect as C = –1 and the top-right label was incorrect as C = +1; they should have been C = +1 and C = –1, respectively. In the Fig. 3b caption, the text ‘C = –1 (yellow) and C = +1 (green)’ should have read ‘C = +1 (yellow) and C = –1 (green)’. In addition, the real-space current density distribution in Fig. 3a (bottom) has been updated.

In the Fig. 4 caption the Chern numbers were incorrectly given in two instances as C = –2,–1,+2,+3; in both instances they should have been C = +2,+1,–2,–3. In addition, in the caption for Fig. 4c,d the expression for the Hall plateau values was incorrect as \(R_{xy} = \frac{1}{C}\frac{h}{{e^2}}\); it should have been \(R_{xy} = -\frac{1}{C}\frac{h}{{e^2}}\).

Finally, in the caption for Extended Data Fig. 8 the Chern number was given incorrectly in two instances as C = 1; it should have been C = –1 in both instances.

These errors have now been corrected.