Evidence for photoelectron backscattering by interstitial charge densities

The presence of oscillatory structures in the atomic x-ray absorption background is reported for the first time for surface-EXAFS of c(2 x 2)N/Cu(100) and (2 x 3)N/Cu(110). Systematic analysis of this feature (AXAF'S) and comparison to theory yields new i
Addresses: FREE UNIV BERLIN, INST EXPT PHYS, D-14195 BERLIN, GERMANY. UNIV UPPSALA, DEPT PHYS, S-75121 UPPSALA, SWEDEN. UNIV WASHINGTON, DEPT PHYS, SEATTLE, WA 98195. UNIV RAJASTHAN, DEPT PHYS, JAIPUR 302004, RAJASTHAN, INDIA.