1202.3327 (A. Ballestar et al.)

Electric Field induced Superconductivity in Multigraphene    [PDF]

A. Ballestar, J. Barzola-Quiquia, S. Dusari, P. Esquinazi R. R. da Silva, Y. Kopelevich

We have studied the temperature and magnetic field dependence of the
electrical resistance of mesoscopic, tens of nanometers thick multigraphene
samples as a function of a bias voltage applied perpendicular to the graphene
planes. We found that the resistance changes asymmetrically with the bias
voltage sign. For large and negative bias voltages the resistance shows a
non-percolative superconducting-like transition at $T \sim 15 ... 20 $K. A
large enough magnetic field suppresses the transition.

View original: http://arxiv.org/abs/1202.3327