Manifestation of quantum confinement in transport properties of ultrathin metallic films

被引：5

作者：

Fedorov, Dmitry V. ^{[1
]}

Zahn, Peter ^{[1
]}

Mertig, Ingrid ^{[1
]}

机构：

[1] Univ Halle Wittenberg, Fachbereich Phys, Fachgrp, D-06099 Halle, Germany

来源：

THIN SOLID FILMS | 2007年 / 515卷 / 17期

关键词：

copper; iron; quantum effects; surface conductivity;

D O I：

10.1016/j.tsf.2007.01.054

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of quantum size effect on the transport properties of ultrathin Cu and Fe films in the thickness range between 1 and 32 monolayers is studied by solving the linearized Boltzmann equation in the relaxation-time approximation using ab initio calculations within the framework of spin density functional theory. A strong manifestation of quantum confinement is found in the density of states. However, the plasma frequency shows a smooth or oscillating behavior for different film orientations. The results are in qualitative agreement to infrared-absorption experiments at Cu(111), Fe(001), and Fe (111) films. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：6921 / 6926

页数：6

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