Adsorbate-induced charge density oscillations and many-body effects in STM image

被引：14

作者：

Kawasaka, T ^{[1
]}

Kasai, H

Okiji, A

机构：

[1] Osaka Univ, Dept Mat & Life Sci, Suita, Osaka 5650871, Japan

[2] Osaka Univ, Dept Appl Phys, Suita, Osaka 5650871, Japan

[3] Wakayama Natl Coll Technol, Wakayama 6440023, Japan

来源：

PHYSICS LETTERS A | 1998年 / 250卷 / 4-6期

关键词：

many-body effects; charge density oscillation; STM image; Kondo effect;

D O I：

10.1016/S0375-9601(98)00820-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Many-body effects on the STM imaged charge density oscillations around a magnetic adatom on a nonmagnetic metal surface are investigated with the aid of the Newns-Anderson model. It is shown that the many-body effects due to Coulomb interactions between electrons on a localized orbital of the adatom can be observed in the strong temperature dependence of the charge density image on and around the adatom. In addition, it is suggested that the Kondo resonance can be observed in this system as protrusions in the spatially resolved spectroscopic STM images and that the Fano resonance can be also observed as an asymmetry of the differential conductance versus energy (bias) curve about the Fermi level, (C) 1998 Elsevier Science B.V.

引用

页码：403 / 407

页数：5

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