Tuning the kondo effect with a mechanically controllable break junction

被引：172

作者：

Parks, J. J. ^{[1
]}

Champagne, A. R.

Hutchison, G. R.

Flores-Torres, S.

Abruna, H. D.

Ralph, D. C.

机构：

[1] Cornell Univ, Atom & Solid State Phys Lab, Ithaca, NY 14853 USA

[2] Cornell Univ, Dept Chem & Chem Biol, Ithaca, NY 14853 USA

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.99.026601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study electron transport through C-60 molecules in the Kondo regime using a mechanically controllable break junction. By varying the electrode spacing, we are able to change both the width and the height of the Kondo resonance, indicating modification of the Kondo temperature and the relative strength of coupling to the two electrodes. The linear conductance as a function of T/T-K agrees with the scaling function expected for the spin-1/2 Kondo problem. We are also able to tune finite-bias Kondo features which appear at the energy of the first C-60 intracage vibrational mode.

引用

页数：4

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