Macroscopic-ranged proximity effect in graphite
Open Access
- 27 September 2021
- journal article
- research article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 33 (49), 495602
- https://doi.org/10.1088/1361-648x/ac24c5
Abstract
We report proximity-induced superconducting features over macroscopic lengths in highly oriented pyrolytic graphite. The phenomenon is triggered when electrical currents are injected in the material through superconducting electrodes, few millimeters apart from each other. Such a large range is anomalous, as proximity-induced features in normal conductors hardly surpass few micrometers. The results can be explained as due to the presence of pre-existing superconductivity in graphite on small, localized regions.Keywords
Funding Information
- National Science Center (2014/15/B/ST3/03889)
- Microkelvn Platform (APVV-18-0358)
- Air Force Office of Scientific Research (FA9550-17-1-0132)
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