Abstract
Scanning tunneling spectroscopy was used for investigating the surface electronic structure of (2 × 1) and c(4 × 2) domains on Ge(001). A UHV system with a constant base pressure was applied at room temperature for the investigations. The presence of a metallic state on the (2 × 1) domains, which was absent on the c(4 × 2) domains, was indicated by the measured surface densities of states. The flip-flop dimers that constituted the (2 × 1) domains was responsible for this metallic state which was observed only in integral measurements.
Original language | English |
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Article number | 066101 |
Pages (from-to) | 066101-1-066101-4 |
Journal | Physical Review Letters |
Volume | 93 |
Issue number | 6 |
DOIs | |
Publication status | Published - 6 Aug 2004 |
Externally published | Yes |