Nonlinear quantum capacitance

被引：28

作者：

Wang, BG ^{[1
]}

Zhao, X

Wang, J

Guo, H

机构：

[1] Univ Hong Kong, Dept Phys, Hong Kong, Peoples R China

[2] McGill Univ, Ctr Phys Mat, Montreal, PQ H3A 2T8, Canada

[3] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

来源：

APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 19期

关键词：

D O I：

10.1063/1.124047

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We analyze the nonlinear voltage dependence of electrochemical capacitance for nanoscale conductors. This voltage dependence is due to the finite density of states of the conductors. Within Hartree theory we derive an exact expression for the electrochemical capacitance-voltage curve for a parallel plate system. The result suggests a quantum scanning capacitance microscopy at the nanoscale: by inverting the capacitance-voltage expression one is able to deduce the local spectral function of the nanoscale conductor. (C) 1999 American Institute of Physics. [S0003-6951(99)04319-3].

引用

页码：2887 / 2889

页数：3

共 19 条

[1] EFFECT OF PHASE BREAKING ON THE AC RESPONSE OF MESOSCOPIC SYSTEMS [J].