SPECTROSCOPIC MEASUREMENTS OF DISCRETE ELECTRONIC STATES IN SINGLE METAL PARTICLES

被引：462

作者：

RALPH, DC ^{[1
]}

BLACK, CT ^{[1
]}

TINKHAM, M ^{[1
]}

机构：

[1] HARVARD UNIV,DIV APPL SCI,CAMBRIDGE,MA 02138

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.74.3241

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have made tunnel junctions containing one Al particle of diameter <10 nm. Tunneling via discrete electronic states in the particle produces steps in the current-voltage (I- V) curve, providing, for the first time, a spectroscopic measurement of the electronic energy levels in a metal particle. With superconducting leads, the I- V contribution from each discrete state has the form of the BCS density of states. We can determine the parity of the electron number in the particle's ground state through the effects of an applied magnetic field on the I- V curve. © 1995 The American Physical Society.

引用

页码：3241 / 3244

页数：4

共 12 条

[1] THEORY OF DIRTY SUPERCONDUCTORS [J].