Filling carbon nanotubes with metals by the arc-discharge method: the key role of sulfurN. Demoncy, O. Stéphan, N. Brun, C. Colliex, A. Loiseau and H. PascardEur. Phys. J. B, 4 2 (1998) 147-157DOI: https://doi.org/10.1007/s100510050363