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Quantum-Interference-Controlled Molecular Electronics
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DOI：10.1021/nl8016175.png)
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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.
Keyword:
AB-INITIO
TRANSPORT
DEVICES
期刊
IF:
9.1
论文数:
2.7W
被引数:
16.5W
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引用论文
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