Scanning tunneling spectroscopy on deposited platinum clusters

被引：54

作者：

Bettac, A ^{[1
]}

Koller, L ^{[1
]}

Rank, V ^{[1
]}

Meiwes-Broer, KH ^{[1
]}

机构：

[1] Univ Rostock, Fachbereich Phys, D-18051 Rostock, Germany

来源：

SURFACE SCIENCE | 1998年 / 402卷 / 1-3期

关键词：

clusters; conductivity; platinum; quantum size effect; scanning tunneling spectroscopy;

D O I：

10.1016/S0039-6028(98)00028-4

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：

We report on investigations of platinum clusters with about five to 400 atoms that are deposited from a cluster beam on to crystalline graphite surfaces. Scanning tunneling spectroscopy in an UHV environment at liquid helium temperatures reveals the existence of distinct peaks in the conductivity of the cluster-on-surface system. For negative voltages, the peak separations scale with the inverse particle height, which hints at a quantum size effect in these metallic "quantum dots". (C) 1998 Elsevier Science B.V..All rights reserved.

引用

页码：475 / 479

页数：5

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