Media type: E-Article Title: Force interaction between a W tip and Si(111) investigated under ultrahigh vacuum conditions Contributor: Erlandsson, R.; Yakimov, V. Published: American Physical Society (APS), 2000 Published in: Physical Review B, 62 (2000) 20, Seite 13680-13686 Language: English DOI: 10.1103/physrevb.62.13680 ISSN: 0163-1829; 1095-3795 Origination: Footnote: