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Engineering Negative Differential Conductance with the Cu(111) Surface State
- Publication Year :
- 2011
-
Abstract
- Low-temperature scanning tunneling microscopy and spectroscopy are employed to investigate electron tunneling from a C60-terminated tip into a Cu(111) surface. Tunneling between a C60 orbital and the Shockley surface states of copper is shown to produce negative differential conductance (NDC) contrary to conventional expectations. NDC can be tuned through barrier thickness or C60 orientation up to complete extinction. The orientation dependence of NDC is a result of a symmetry matching between the molecular tip and the surface states.<br />5 pages, 4 figures, 1 table
- Subjects :
- Surface (mathematics)
Materials science
Condensed matter physics
Condensed Matter - Mesoscale and Nanoscale Physics
Scanning tunneling spectroscopy
Aucun
General Physics and Astronomy
chemistry.chemical_element
FOS: Physical sciences
Copper
law.invention
Orientation (vector space)
chemistry
law
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Scanning tunneling microscope
Spectroscopy
Quantum tunnelling
Surface states
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....c0ceb9c58e5d9a58373b9fc259705c35