Two-Level Conductance Fluctuations of a Single-Molecule Junction

被引：38

作者：

Neel, N. ^{[1
,2
]}

Kroeger, J. ^{[1
]}

Berndt, R. ^{[2
]}

机构：

[1] Tech Univ Ilmenau, Inst Phys, D-98693 Ilmenau, Germany

[2] Univ Kiel, Inst Expt & Angew Phys, D-24098 Kiel, Germany

来源：

NANO LETTERS | 2011年 / 11卷 / 09期

关键词：

Scanning tunneling microscope; single-molecule junction; two-levels fluctuations; SCANNING TUNNELING MICROSCOPE; ATOM; DYNAMICS; SWITCH; SCALE; NOISE;

D O I：

10.1021/nl201327c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The conductance of a single-molecule junction in a low-temperature scanning tunneling microscope has been measured at nanosecond time resolution. In a transition region between tunneling and contact the conductance exhibits rapid two-level fluctuations which are attributed to different geometries of the junction. The voltage dependence of the fluctuations indicates that electrons injected into the lowest unoccupied molecular orbital may efficiently couple to molecular vibrations.

引用

页码：3593 / 3596

页数：4

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