Quantum-interference-controlled molecular electronics.
Journal Article
Quantum interference in coherent transport through single molecular rings may provide a mechanism to control the current in molecular electronics. We investigate its applicability, using a single-particle Green function method combined with ab initio electronic structure calculations. We find that the quantum interference effect (QIE) is strongly dependent on the interaction between molecular pi-states and contact sigma-states. It is masked by sigma tunneling in small molecular rings with Au leads, such as benzene, due to strong pi-sigma hybridization, while it is preserved in large rings, such as [18]annulene, which then could be used to realize quantum interference effect (QIE) transistors.
Full Text
Duke Authors
Cited Authors
- Ke, S-H; Yang, W; Baranger, HU
Published Date
- October 2008
Published In
Volume / Issue
- 8 / 10
Start / End Page
- 3257 - 3261
PubMed ID
- 18803424
Pubmed Central ID
- 18803424
Electronic International Standard Serial Number (EISSN)
- 1530-6992
International Standard Serial Number (ISSN)
- 1530-6992
Digital Object Identifier (DOI)
- 10.1021/nl8016175
Language
- eng