Evidence for one-dimensional electron propagation on Si(111)-(2x1) from Coulomb blockade
2005 | journal article. A publication with affiliation to the University of Göttingen.
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Evidence for one-dimensional electron propagation on Si(111)-(2x1) from Coulomb blockade
Garleff, J. K.; Wenderoth, M.; Ulbrich, R. G.; Surgers, C. & von Lohneysen, H. (2005)
PHYSICAL REVIEW B, 72(7) art. 073406. DOI: https://doi.org/10.1103/PhysRevB.72.073406
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Details
- Authors
- Garleff, J. K.; Wenderoth, Martin; Ulbrich, Rainer G.; Surgers, C.; von Lohneysen, H.
- Abstract
- Scanning tunneling spectroscopy is used to study the electronic properties of the Si(111)-2x1 surface at 8 K. Wave-function mapping reveals highly anisotropic scattering of electrons with one-dimensional (1D) confinement on the pi-bonded chains. The differential tunneling conductance is strongly reduced at the Fermi energy E-F and exhibits a Coulomb gap. The gap width W scales with the inverse length L of the chain segments defined by the distance between two adjacent scatterers such as surface steps or dopant atoms within a given chain. A model of electronic transport through 1D chain segments of finite length describes the observed behavior.
- Issue Date
- 2005
- Status
- published
- Publisher
- American Physical Soc
- Journal
- PHYSICAL REVIEW B
- ISSN
- 1098-0121
