First-principles calculations and bias-dependent STM measurements at the -Sn/Ge(111) surfaceP. Gori, F. Ronci, S. Colonna, A. Cricenti, O. Pulci and G. Le LayEPL, 85 6 (2009) 66001DOI: https://doi.org/10.1209/0295-5075/85/66001