Atomic and mesoscopic structure of Dy-based surface alloys on noble metals

Atomic Diffusion in Metals and Alloys

Before starting this module, it is assumed that the student is familiar with the crystalline nature of metals and alloys, and understands the terms interstitial, vacancy, substitutional solid solution, binary alloy. References are made to the equilibrium vacancy concentration and it is preferable that this concept had been encountered, although backup is available both through the glossary and ...

Surface-state electron dynamics in noble metals

Theoretical investigations of surface-state electron dynamics in noble metals are reported. The dynamically screened interaction is computed, within many-body theory, by going beyond a free-electron description of the metal surface. Calculations of the inelastic linewidth of Shockley surface-state electrons and holes in these materials are also presented. While the linewidth of excited holes at...

Surface Plasmon Waves on noble metals at Optical Wavelengths

In this paper the variation of the propagation constant, the attenuation coefficient, penetration depth inside the metal and the dielectric has been evaluated. The propagation characteristics of Surface Plasmon Waves (SPWs) which exists on noble metals like gold (Au), silver (Ag) and aluminium (Al) due to the formation of Surface Plasmon Polaritons (SPPs), have been evaluated theoretically and ...

Computer simulation of atomic structure of rhenium-based amorphous alloys

Surface Femtochemistry: Frustrated Desorption of Alkali Atoms from Noble Metals

The electronic excitation of chemisorbed Cs atoms through the coherent photoinduced charge transfer from the Cu(111) surface turns on repulsive forces that initiate the dissociative wave packet motion. Due to unusually slow electronic relaxation, with the interferometric time-resolved two-photon photoemission technique it is possible to follow the characteristic change in the surface electronic...