Theory of rectification in tour wires: The role of electrode coupling

被引:331
作者
Taylor, J [1 ]
Brandbyge, M [1 ]
Stokbro, K [1 ]
机构
[1] Tech Univ Denmark, Mikroelekt Ctr, DK-2800 Lyngby, Denmark
关键词
D O I
10.1103/PhysRevLett.89.138301
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report first-principles studies of electronic transport and rectification in molecular wires attached to gold electrodes. Our ab initio calculation gives an accurate description of the voltage drop as well as the broadening and alignment of the molecular levels in the metal-molecule-metal complex. We find that the operation range and rectification in such strongly chemisorbed molecules is limited by the width of the transmission resonances and their proximity to the Fermi level.
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页数:4
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