RT Journal Article T1 Neutron scattering experiments and simulations near the magnetic percolation threshold of Fe_(x)Zn_(1-x)F_(2) A1 Álvarez Galindo, Gabriel A1 Belanger, D.P. A1 Durand, A.M. A1 Martín Mayor, Víctor A1 Montoya, K. A1 Muro, Y. AB The low temperature excitations in the anisotropic antiferromagnetic Fe_(x)Zn_(1-x)F_(2) for x = 0.25 and 0.31, at and just above the magnetic percolation threshold concentration x_(p) = 0.25, were measured using inelastic neutron scattering. The excitations were simulated for x = 0.31 using a localized, classical excitation model, which accounts well for the energies and relative intensities of the excitations observed in the scattering experiments. PB American Physical Society SN 1098-0121 YR 2012 FD 2012-07-12 LK https://hdl.handle.net/20.500.14352/42757 UL https://hdl.handle.net/20.500.14352/42757 LA eng NO © 2012 American Physical Society. We acknowledge partial financial support from MICINN, Spain, (Grant Nos. FIS2009-12648-C03 and FIS2011-22566), and from UCM-Banco Santander (GR32/10-A/910383, GR58/08-910556). V.M.-M. thanks the del Amo foundation and the hospitality of the Physics Department of U. California Santa Cruz, where part of this work was performed. We thank the members of the Neutron Scattering Laboratory, Institute for Solid State Physics, the University of Tokyo for supporting our experiments. NO Ministerio de Ciencia e Innovación (MICINN) NO UCM-Banco Santander DS Docta Complutense RD 10 may 2025