Itinerant spin excitations in SrFe2As2measured by inelastic neutron scattering

Intensities of surface spin wave excitations in inelastic electron scattering

The intensity of surface spin wave excitations in inelastic electron scattering is measured as function of electron energy for fcc and hexagonal close packed (hcp) cobalt layers. Intensities are converted into scattering probabilities with the help of a recently established calibration of our spectrometer. The scattering probability as function of energy exhibits a peak around 7 and 3 eV for fc...

Spin Excitations in Localized and Itinerant Magnets

Collective excitations in magnetic materials can be investigated by means of inelastic neutron scattering. We show that this experimental method gives access to the complete spectrum of magnetic fluctuations through the energyand momentum-dependence of the dynamical susceptibility. We focus on the dynamical properties of magnets with localized spin densities and of metals. From such studies, mi...

Study of low-energy magnetic excitations in single-crystalline CeIn3 by inelastic neutron scattering

Inelastic neutron scattering experiments were performed on single crystals of the heavy-fermion compound CeIn3 for temperatures below and above the Néel temperature, TN . In the antiferromagnetically ordered phase, well-defined spinwave excitations with a bandwidth of 2 meV are observed. The spin waves coexist with quasielastic (QE) Kondo-type spin-fluctuations and broadened crystal-field (CF) ...

High-frequency collective excitations in molten and glassy Te studied by inelastic neutron scattering

M. D. Ruiz-Martín,1 M. Jiménez-Ruiz,1 F. J. Bermejo,2 and R. Fernández-Perea3 1Institut Laue Langevin, 6 Rue Jules Horowitz, BP. 156, F-38042 Grenoble Cedex 9, France 2C.S.I.C., Department of Electricity and Electronics, UPV/EHU, Box 644, 4880 Bilbao, Spain 3Instituto de Estructura de la Materia, Consejo Superior de Investigacioens Científcas, Serrano 123, E-28006 Madrid, Spain Received 6 Decem...

Inelastic neutron scattering from the spin ladder compound (VO)2P2O7.