Correction to: Nature Materials https://doi.org/10.1038/s41563-020-0765-x, published online 17 August 2020.

In the version of this Article originally published, the author Jan Torgersen was mistakenly affiliated with Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra, Spain; the affiliation has now been corrected to Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.