Kondo tunneling through real and artificial molecules

被引：75

作者：

Kikoin, K ^{[1
]}

Avishai, Y ^{[1
]}

机构：

[1] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.86.2090

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

When an asymmetric double dot is hybridized with itinerant electrons, its singlet ground slate and lowly excited triplet state cross, leading to a competition between the Zhang-Rice mechanism of singlet-triplet splitting in a confined cluster and the Kondo effect (which accompanies the tunneling through quantum dot under a Coulomb blockade restriction). The rich physics of an underscreened S = 1 Kondo impurity in the presence of low-lying triplet-singlet excitations is exposed and estimates of the magnetic susceptibility and the electric conductance are presented, together with applications for molecule chemisorption on metallic substrates.

引用

页码：2090 / 2093

页数：4

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