Invited review: Graphite and its hidden superconductivity

Abstract

We review experimental results, from transport to magnetization measurements, on different graphite samples, from bulk oriented graphite, thin graphite films to transmission electron microscope lamellae, that indicate the existence of granular superconductivity at temperatures above 100~K. The   accumulated evidence speaks for a localization of the superconducting phase(s) at certain interfaces  embedded in semiconducting crystalline regions with Bernal stacking order.

Received: 25 January 2013, Accepted: 10 October 2013; Reviewed by: E. M. Forgan, School of Physics & Astronomy, University of Birmingham, U.K.; Edited by: S. A. Grigera; DOI: http://dx.doi.org/10.4279/PIP.050007

Cite as: P Esquinazi, Papers in Physics 5, 050007 (2013)