Magnetic relaxation of nanowires: beyond the Néel-Brown activation process J.-E. Wegrowe, J. P. Meier, B. Doudin, J.-Ph. Ansermet, W. Wernsdorfer, B. Barbara, W. T. Coffey, Y. P. Kalmykov and J.-L. Déjardin Europhys. Lett., 38 5 (1997) 329-334 Published online: 01 September 2002 DOI: 10.1209/epl/i1997-00247-9