Conductance-Driven Change of the Kondo Effect in a Single Cobalt Atom

被引：46
作者：
Choi, D. -J. [1 ]
Rastei, M. V. [1 ]
Simon, P. [2 ]
Limot, L. [1 ]
机构：
[1] Univ Strasbourg, CNRS, Inst Phys & Chim Mat Strasbourg, F-67034 Strasbourg, France
[2] Univ Paris 11, CNRS, Lab Phys Solides, F-91405 Orsay, France
来源：
PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 26期
关键词：
DENSITY-OF-STATES; MAGNETIC IMPURITY; HOT-ELECTRONS; RESONANCE; METALS; TRANSISTOR; SCATTERING;
D O I：
10.1103/PhysRevLett.108.266803
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A low-temperature scanning tunneling microscope is employed to build a junction comprising a Co atom bridging a copper-coated tip and a Cu(100) surface. An Abrikosov-Suhl-Kondo resonance is evidenced in the differential conductance and its width is shown to vary exponentially with the ballistic conductance for all tips employed. Using a theoretical description based on the Anderson model, we show that the Kondo effect and the total conductance are related through the atomic relaxations affecting the environment of the Co atom.
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页数：5
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