Quantum size effects in the optical conductivity of ultrathin metal films

被引：18

作者：

Kuzik, LA

Yakovlev, VA

Pudonin, FA

Mattei, G

机构：

[1] RUSSIAN ACAD SCI, PN LEBEDEV PHYS INST, MOSCOW 117924, RUSSIA

[2] CNR, IST METODOL AVANZATE INORGAN, AREA RIC ROMA, I-00016 MONTEROTONDO, ROMA, ITALY

来源：

SURFACE SCIENCE | 1996年 / 361卷 / 1-3期

关键词：

amorphous thin films; conductivity; infrared absorption; metallic films; polycrystalline thin films; quantum effects; reflection spectroscopy;

D O I：

10.1016/0039-6028(96)00556-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Optical and electrical properties of ultrathin (0.15-7 nm) metal films (Nb, Cu, Mo, W, Ni and Ti) deposited by radio-frequency sputtering have been studied. Infrared (IR) reflectivity, transmittance as well as direct current (DC) conductivity measurements have been used to characterise these films The periodic thickness dependence of the optical and DC conductivity was found. The periods of oscillations for different metals are of the order of the electron Fermi wavelength. Thus it was proposed that these oscillations are due to quantum size effects.

引用

页码：882 / 885

页数：4

共 8 条

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