Can doping graphite trigger room temperature superconductivity? Evidence for granular high-temperature superconductivity in water-treated graphite powder
Superconductivity
2013-07-09 v1 Materials Science
Strongly Correlated Electrons
Abstract
Trying to dope graphite flakes we found that the magnetization of pure, several tens of micrometers grain size graphite powder and after a simple treatment with pure water shows clear and reproducible granular superconducting behavior with a critical temperature above 300K. The observed magnetic characteristics as a function of temperature, magnetic field and time, provide evidence for weakly coupled grains through Josephson interaction, revealing the existence of superconducting vortices.
Keywords
Cite
@article{arxiv.1209.1938,
title = {Can doping graphite trigger room temperature superconductivity? Evidence for granular high-temperature superconductivity in water-treated graphite powder},
author = {T. Scheike and W. Böhlmann and P. Esquinazi and J. Barzola-Quiquia and A. Ballestar and A. Setzer},
journal= {arXiv preprint arXiv:1209.1938},
year = {2013}
}
Comments
19 pages, 5 figures; http://onlinelibrary.wiley.com/doi/10.1002/adma.201202219/abstract (2012)