Proximity Effect in a Superconductor-Metallofullerene-Superconductor Molecular Junction
Other Condensed Matter
2009-11-10 v2
Abstract
We report low-temperature transport measurements through molecules of Gd metallofullerenes between superconducting suspended electrodes. The presence and number of molecules in the 2 nm-wide gap between electrodes was determined by high resolution transmission electron microscopy. We find that a junction containing a single metallofullerene dimer between superconducting electrodes displays signs of proximity-induced superconductivity. In contrast, no proximity effects develops in junctions containing larger cluster of metallofulerenes. These results can be understood by taking into account multiple Andreev reflections, and the spin states of the Gd atoms.
Cite
@article{arxiv.cond-mat/0402312,
title = {Proximity Effect in a Superconductor-Metallofullerene-Superconductor Molecular Junction},
author = {A. Yu. Kasumov and K. Tsukagoshi and M. Kawamura and T. Kobayashi and Y. Aoyagi and K. Senba and T. Kodama and H. Nishikawa and I. Ikemoto and K. Kikuchi and V. T. Volkov and Yu. A. Kasumov and R. Deblock and S. Gueron and H. Bouchiat},
journal= {arXiv preprint arXiv:cond-mat/0402312},
year = {2009}
}
Comments
5 pages, 4 figures. Submitted to Phys.Rev.Lett