Atom-surface interaction at the nanometre scale: van der Waals-Zeeman transitions in a magnetic fieldM. Hamamda, M. Boustimi, V. Bocvarski, T. Taillandier-Loize, G. Dutier, F. Perales, J. Baudon and M. DucloyEPL, 98 2 (2012) 23001DOI: https://doi.org/10.1209/0295-5075/98/23001