Conductance of individual C60 molecules measured with controllable gold electrodes
Conductance of individual C60 molecules measured with controllable gold electrodes
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DOI：
10.1103/physrevb.76.125432
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发表时间：
2007-09-01
影响因子：
3.7
通讯作者：
Scheer, E.
中科院分区：
文献类型：
--
作者：
Boehler, T.;Edtbauer, A.;Scheer, E.
我们使用机械可控的断结电极在10 K的特高压下研究了C-60分子的电导。分子在原地蒸发。通过这种方法，我们获得了清洁和低电阻的触点。通过对电导直方图和微分电导（dI/dV）迹线的分析，我们推断出金电极之间单个C-60分子的首选电导值接近0.1 G(0)。在接近分子振动能的能量处，dI/dV的导数特征证明了C-60的存在。冷加工后分子的特性消失。
We investigated the conductance of C-60 molecules using mechanically controllable break-junction electrodes at 10 K in UHV. The molecules are evaporated in situ. With this method, we obtain clean and low-resistance contacts. From the analysis of conductance histograms and differential-conductance (dI/dV) traces, we deduce the preferred conductance value of a single C-60 molecule between gold electrodes to be close to 0.1 G(0). The presence of C-60 is evidenced by features in the derivative of the dI/dV at energies close to the molecular vibration energies. The characteristics of the molecules disappear upon cold working of the junctions.