Correction to: Nature Communications https://doi.org/10.1038/s41467-018-04287-5; published online 17 May 2018

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

‘Finally, we gratefully acknowledge support from the German Science Foundation (DFG) by a grant toward the Cluster of Excellence “Center for Advancing Electronics Dresden” (cfaed)’

This has been corrected in both the PDF and HTML versions of the Article.