Electronic properties of (2x1) and c(4x2) domains on Ge(001) studied by scanning tunneling spectroscopy

Gurlu, Oguzhan and Zandvliet, Harold J.W. and Poelsema, Bene (2004) Electronic properties of (2x1) and c(4x2) domains on Ge(001) studied by scanning tunneling spectroscopy. Physical Review Letters, 93 (6). 066101. ISSN 0031-9007

Preview

PDF
282Kb

Abstract:	The surface electronic structure of Ge(001) was studied by scanning tunneling spectroscopy. The measured surface densities of states unequivocally reveal the presence of a metallic state on the (2×1) domains, which is absent on the c(4×2) domains. This metallic state, so far observed only in integral measurements, is attributed to the flip-flopping dimers that constitute the (2×1) domains. Our data also reveal a set of previously unresolved surface states, in perfect agreement with published theoretical predictions
Item Type:	Article
Copyright:	© 2004 The American Physical Society
Faculty:	Science and Technology (TNW)
Research Group:	Physics of Interfaces and Nanomaterials (PIN)
Link to this item:	http://purl.utwente.nl/publications/48896
Official URL:	http://dx.doi.org/10.1103/PhysRevLett.93.066101
Export this item as:	BibTeX EndNote HTML Citation Reference Manager

Show download statistics for this publication

Repository Staff Only: item control page

Metis ID: 220686