STM control of non-integer charge on a metal particle inferred from Coulomb staircase

Zhao Yan Rong, Alejandro Chang, Lesley F. Cohen, E. L. Wolf

Research output: Contribution to journalArticle

Abstract

Coulomb blockade I-V characteristics are observed between a Au tip, 100 Å Ag particle, and conducting substrate, at 4.2 K. In such a voltage-biased double junction, the Coulomb threshold e/2C is expected to be a periodic function of the residual non-integer charge Q0 on the inner electrode (small particle), with period e. I-V spectra above an individual particle, obtained at 50 equally spaced values of tip-particle spacing, s, are analyzed to demonstrate control of Q0 by tip spacing s.

Original languageEnglish (US)
Pages (from-to)333-337
Number of pages5
JournalUltramicroscopy
Volume42-44
Issue numberPART 1
DOIs
StatePublished - 1992

Fingerprint

Coulomb blockade
stairways
metal particles
Metals
Electrodes
Electric potential
Substrates
spacing
periodic functions
conduction
thresholds
electrodes
electric potential

ASJC Scopus subject areas

  • Materials Science(all)
  • Instrumentation

Cite this

STM control of non-integer charge on a metal particle inferred from Coulomb staircase. / Rong, Zhao Yan; Chang, Alejandro; Cohen, Lesley F.; Wolf, E. L.

In: Ultramicroscopy, Vol. 42-44, No. PART 1, 1992, p. 333-337.

Research output: Contribution to journalArticle

Rong, Zhao Yan ; Chang, Alejandro ; Cohen, Lesley F. ; Wolf, E. L. / STM control of non-integer charge on a metal particle inferred from Coulomb staircase. In: Ultramicroscopy. 1992 ; Vol. 42-44, No. PART 1. pp. 333-337.
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