小钯团簇的库仑阻塞

Coulomb blockade of small Pd clusters.

作者信息

Oncel Nuri, Hallback Ann-Sofie, Zandvliet Harold J W, Speets Emiel A, Ravoo Bart Jan, Reinhoudt David N, Poelsema Bene

机构信息

Solid State Physics Group and Microsystems and Engineering Sciences Applications (MESA)+ Institute for Nanotechnology, University of Twente, P.O. Box 217,7500 AE Enschede, The Netherlands.

出版信息

J Chem Phys. 2005 Jul 22;123(4):044703. doi: 10.1063/1.1996567.

DOI:10.1063/1.1996567

PMID:16095380

Abstract

Single-electron tunneling through Au substrate-alkanethiol-Pd cluster-tip junctions is investigated with scanning tunneling spectroscopy. The measured I(V) curves reveal several characteristic features of the Coulomb blockade, namely, the presence of a Coulomb gap and a Coulomb staircase. By using the orthodox theory of single-electron tunneling, the capacitances and resistances of the double junction system as well as the fractional charge are extracted from the experimental data.

摘要

利用扫描隧道谱研究了单电子隧穿通过金基底-链烷硫醇-钯团簇-针尖结的情况。测量得到的I(V)曲线揭示了库仑阻塞的几个特征，即存在库仑能隙和库仑台阶。通过使用单电子隧穿的正统理论，从实验数据中提取了双结系统的电容、电阻以及分数电荷。