Spin-polarized STM for a Kondo adatom

被引：17

作者：

Seridonio, A. C. ^{[1
,2
]}

Souza, F. M. ^{[1
]}

Shelykh, I. A. ^{[1
,3
]}

机构：

[1] Univ Brasilia, ICCMP, BR-04513 Brasilia, DF, Brazil

[2] Univ Fed Fluminense, Inst Fis, BR-24310246 Niteroi, RJ, Brazil

[3] Univ Iceland, Dept Sci, IS-107 Reykjavik, Iceland

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2009年 / 21卷 / 09期

关键词：

ANDERSON MODEL; RESONANCE; SPECTROSCOPY; STATES;

D O I：

10.1088/0953-8984/21/9/095003

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We investigate the bias dependence of the tunneling conductance between a spin-polarized (SP) scanning tunneling microscope (STM) tip and the surface conduction states of a normal metal with a Kondo adatom. Quantum interference between tip-host metal and tip-adatom-host metal conduction paths is studied in the full range of the Fano parameter q. The spin-polarized STM gives rise to a splitting of the Kondo peak and asymmetry in the zero-bias anomaly, depending on the lateral tip-adatom distance. For increasing lateral distances, the Kondo peak splitting shows a strong suppression and the spin-polarized conductance exhibits the standard Fano-Kondo profile.

引用

页数：7

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