Quantum inelastic conductance through molecular wires

被引:129
作者
Ness, H [1 ]
Fisher, AJ [1 ]
机构
[1] Univ London Univ Coll, Dept Phys & Astron, London WC1E 6BT, England
基金
欧盟地平线“2020”;
关键词
D O I
10.1103/PhysRevLett.83.452
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We calculate nonperturbatively the inelastic effects on the conductance through a conjugated molecular-wire-metal heterojunction, including realistic electron-phonon coupling. We show that at subband-gap energies the current is dominated by quantum coherent transport of virtual polarons through the molecule. In this regime. the tunneling current is strongly increased relative to the case of elastic scattering. It is essential to describe the full quantum coherence of the polaron formation and transport in order to obtain correct physics. Our results are generally applicable to one-dimensional atomic or molecular wires.
引用
收藏
页码:452 / 455
页数:4
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