We use cookies to make sure that our website works correctly, as well as some optional cookies to personalize content and advertising, provide social media features and analyse how people use our site. By accepting some or all optional cookies, you agree to the processing of your personal data, including transfer to third parties, in countries that don't offer the same data protection standards as the country where you reside. Clicking on'manage settings' will give you more information about how your data is processed. We have a privacy policy.
The article was published online on 14 October 2020. The editors of Nature would like to take the paper off the shelves. The manner in which the data in this paper have been processed and analysed has caused some questions to be raised. The background subtractions applied to the raw data used to generate the magnetic susceptibility plots are now known. The validity of the background subtraction has been called into question due to the lack of details in the paper. The authors believe that the data supports the main claims of the paper. We are withdrawing the paper because we believe that the processing issues undermine confidence in the published magnetic susceptibility data. The authors who explicitly stated their opinion did not agree with it. You agree to abide by the guidelines for submitting a comment. If you find something that is not in line with our guidelines, please flag it.