Standing wave inelastic scattering from Si

Inelastic scattering rates in d-wave superconductors

The inelastic scattering rates of quasiparticles in a two-dimensional d-wave superconductor, which arise from interactions with either acoustic phonons or other quasiparticles, are calculated within second order perturbation theory. We discover a strong enhancement of scattering with collinear momenta, brought about by the special kinematics of the two-dimensional fermions with Dirac-like spect...

Scattering: X-Ray Standing Wave Techniques

Introduction The X-ray standing wave (XSW) technique provides an element-specific structural probe by using x-ray reflectivity to generate a " two-beam " interference field that in turn induces a spatial dependence to the x-ray spectroscopic yields from atoms within the field. The XSW technique is primarily used for resolving the atomic-scale structure at surfaces, interfaces, and thin films wi...

Inelastic scattering from quantum impurities

We review the non-perturbative theoretical framework set up recently to compute the inelastic scattering cross section from quantum impurities [G. Zaránd et al., Phys. Rev. Lett. 93, 107204 (2004)] and show how it can be applied to a number of quantum impurity models. We first use this method for the S = 1/2 single-channel Kondo model and the Anderson model. In both cases, a large plateau is fo...

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...

Inelastic Scattering