Naslov
Experimental and ab initio study of the structural and electronic properties of subnanometer thick Ag films on Pd(111)

Autori
Mikšić Trontl, Vesna ; Pletikosić, Ivo ; Milun, Milorad ; Pervan, Petar ; Lazić, Predrag ; Šokčević, Damir ; Brako, Radovan

Izvornik
Physical review. B, Condensed matter and materials physics (1098-0121) 72 (2005), 23; 235418, 11

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
quantum-well states ; angle-resolved photoemission ; atomically-uniform films ; valence-band structure ; photoelectron-spectroscopy ; pd ; growth ; silver ; dispersions ; overlayers

Sažetak
We present a combined, experimental, and computational investigation of the growth mode and the valence-band structure of Ag∕Pd(111), with the focus on the Ag 4d derived quantum well states. Low-energy electron diffraction and scanning-tunneling microscopy are used to determine epitaxial, layer-by-layer growth of silver on the palladium substrate. High-resolution (in both energy and angle) photoelectron spectra and ab initio density-functional band-structure calculations are compared for 1 and 2 ML silver films along the ¯Γ−¯M′ high symmetry line of the surface Brillouin zone. The observed d-derived electronic states and their dispersion are explained in terms of quantum well states. The interaction of the silver 4d electronic states with the palladium substrate is discussed.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA