Correction to: Nature Communications, published online 21 April 2021.

The original version of this Article omitted the following statement from the Acknowledgements:

‘We acknowledge MAX IV Laboratory for time on Beamline SPECIES-APXPS under Proposal 20200356. Research conducted at MAX IV, a Swedish national user facility, is supported by the Swedish Research council under contract 2018-07152, the Swedish Governmental Agency for Innovation Systems under contract 2018-04969, and Formas under contract 2019-02496.’

This has been added to the Acknowledgements in both the PDF and HTML versions of the Article.