Engineering Negative Differential Conductance with the Cu(111) Surface State
arXiv:1112.1801 · doi:10.1103/PhysRevLett.107.246801
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.
5 pages, 4 figures, 1 table
References in corpus (3)
Cited by in corpus (12)
- Atomic-scale spin sensing with a single-molecule at the apex of a scanning tunneling microscope
- Tunable magnetoresistance in an asymmetrically coupled single molecule junction
- Vibrationally Induced Decoherence in Single-Molecule Junctions
- Effect of nonadiabatic electronic-vibrational interactions on the transport properties of single-molecule junctions
- Visualizing Atomic-Scale Negative Differential Resistance in Bilayer Graphene
- Imaging isodensity contours of molecular states with STM
- Topographical fingerprints of many-body interference blocking in STM junctions on thin insulating films
- Negative Differential Resistance in Spin-Crossover Molecular Devices
- Nonequilibrium electron-vibration coupling and conductance fluctuations in a C60-junction
- Hierarchical quantum master equation approach to charge transport in molecular junctions with time-dependent molecule-lead coupling strengths
- Surface states and related quantum interference in \textit{ab initio} electron transport
- One dimensional chains of nickelocene fragments on Au(111)