A neutron scattering study of spin precession in ferrimagnetic maghemite nanoparticlesK. Lefmann, F. Bødker, S. N. Klausen, M. F. Hansen, K. N. Clausen, P.-A. Lindgård and S. MørupEurophys. Lett., 54 4 (2001) 526-532DOI: https://doi.org/10.1209/epl/i2001-00279-7