The non-contact friction between a metal tip and a Bi2Te3 surface is controlled by a single charge in an image potential state.
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29 October 2019
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
References
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Gotsmann, B. Shrewd detectives find a dissipation channel. Nat. Mater. 18, 1149–1150 (2019). https://doi.org/10.1038/s41563-019-0509-y
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DOI: https://doi.org/10.1038/s41563-019-0509-y