Magnon scattering by a symmetric atomic well in free standing very thin magnetic films R. Tigrine, A. Khater, B. Bourahla, M. Abou Ghantous and O. Rafil Eur. Phys. J. B, 62 1 (2008) 59-64 Published online: 21 March 2008 DOI: 10.1140/epjb/e2008-00125-x