Exploring the van der Waals atom-surface attraction in the nanometric rangeM. Fichet, G. Dutier, A. Yarovitsky, P. Todorov, I. Hamdi, I. Maurin, S. Saltiel, D. Sarkisyan, M.-P. Gorza, D. Bloch and M. DucloyEPL, 77 5 (2007) 54001DOI: https://doi.org/10.1209/0295-5075/77/54001