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.

引用

页数：5

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