Correction to: Nature Communications https://doi.org/10.1038/s41467-017-01831-7, Article published online 22 November 2017

In the original version of this Article, the affiliation for Su-Jon Jeong was incorrectly given as ‘Southern University of Science and Technology of China (SUSTECH)’, instead of ‘Southern University of Science and Technology (SUSTECH)’. This has now been corrected in both the PDF and HTML versions of the Article.