Spectroscopy, Interactions, and Level Splittings in Au Nanoparticles
- 23 August 1999
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 83 (8) , 1644-1647
- https://doi.org/10.1103/physrevlett.83.1644
Abstract
We have measured the electronic energy spectra of nm-scale Au particles using a new tunneling spectroscopy configuration. The particle diameters ranged from 5nm to 9nm, and at low energies the spectrum is discrete, as expected by the electron-in-a-box model. The density of tunneling resonances increases rapidly with energy, and at higher energies the resonances overlap forming broad resonances. Near the Thouless energy, the broad resonances merge into a continuum. The tunneling resonances display Zeeman splitting in a magnetic field. Surprisingly, the g-factors (~0.3) of energy levels in Au nano-particles are much smaller than the g-factor (2.1) in bulk gold.Keywords
All Related Versions
This publication has 12 references indexed in Scilit:
- Coulomb blockade and discrete energy levels in Au nanoparticlesApplied Physics Letters, 1998
- Electron–electron correlations in carbon nanotubesNature, 1998
- Spin Splitting and Even-Odd Effects in Carbon NanotubesPhysical Review Letters, 1998
- Effect of island length on the Coulomb modulation in single-electron transistorsPhysical Review B, 1998
- Correlations Between Ground and Excited State Spectra of a Quantum DotScience, 1997
- Gate-Voltage Studies of Discrete Electronic States in Aluminum NanoparticlesPhysical Review Letters, 1997
- Quasiparticle Lifetime in a Finite System: A Nonperturbative ApproachPhysical Review Letters, 1997
- Chaos, Interactions, and Nonequilibrium Effects in the Tunneling Resonance Spectra of Ultrasmall Metallic ParticlesPhysical Review Letters, 1997
- Spectroscopic Measurements of Discrete Electronic States in Single Metal ParticlesPhysical Review Letters, 1995
- Spectroscopy, Electron-Electron Interaction, and Level Statistics in a Disordered Quantum DotEurophysics Letters, 1994