Magnetic and vibration excitations induced by collision in ferromagnetic cluster R. Lahreche, R.-J. Tarento, P. Joyes and D. E. Mekki Eur. Phys. J. D, 34 1-3 (2005) 211-214 Published online: 13 July 2005 DOI: 10.1140/epjd/e2005-00144-3