Complex magnetic internal order in structurally disordered Ni nanoparticles E. De Biasi, A. León-Vanegas, W. C. Nunes, S. K. Sharma, P. Haddad, T. C.R. Rocha, J. G. Santos Duque, D. Zanchet and M. Knobel Eur. Phys. J. B, 66 4 (2008) 503-508 Published online: 09 December 2008 DOI: 10.1140/epjb/e2008-00445-9