Probing the superconducting condensate on a nanometer scale Th. Proslier, A. Kohen, Y. Noat, T. Cren, D. Roditchev and W. Sacks Europhys. Lett., 73 6 (2006) 962-968 Published online: 22 February 2006 DOI: 10.1209/epl/i2005-10488-0