Correction to: Nature Materials https://doi.org/10.1038/s41563-020-0760-2, published online 10 August 2020.

The previous Publisher Correction for this Article described the addition of a minus sign to the left-hand term of equation (2), when it should have been added to the first term on the right of the equation. The corrected equation is shown below, and all versions of the original Article have been updated accordingly.

$$\frac{{\partial \eta _i\left( {{\mathbf{r}},\;t} \right)}}{{\partial t}} = - {\mathrm{{\Gamma}}}\left( \phi \right)\frac{{\partial F}}{{\partial \eta _i}} + \theta _{\eta _i}\left( {{\mathbf{r}},\;t} \right)$$