Electron correlations in metal nanoparticles with spin-orbit scattering

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dc.creatorGorokhov, Denis A.
dc.creatorBrouwer, Piet W.
dc.date2003-11-04
dc.date.accessioned2026-07-07T06:29:41Z
dc.date.available2026-07-07T06:29:41Z
dc.descriptionThe combined effect of electron-electron interactions and spin-orbit scattering in metal nanoparticles can be studied by measuring splitting of electron levels in magnetic field ($g$ factors) in tunneling spectroscopy experiments. Using random matrix theory to describe the single-electron states in the metal particle, we find that even a relatively small electron-electron interaction strength (ratio of exchange constant $J$ and mean level spacing $\spacing$ $\simeq 0.3$) significantly increases $g$-factor fluctuations for not-too-strong spin-orbit scattering rates (spin-orbit time $τ_{\rm so} \gtrsim 1/\spacing$). In particular, $g$-factors larger than 2 could be observed. (This is a manifestation of the many-body correlation effects in nanoparticles). While so far measurements only on noble metal (Cu, Ag, Au) and Al samples have been done for which the effects of electron-electron interactions are negligible, we discuss the possibility of observing interaction effects in nanoparticles made of other metals.
dc.descriptionRevTeX, 15 pages, 11 figures inserted
dc.identifierhttps://arxiv.org/abs/cond-mat/0311086
dc.identifierhttp://arxiv.org/abs/cond-mat/0311086
dc.identifierPhys. Rev. B 69, 155417 (2004)
dc.identifierdoi:10.1103/PhysRevB.69.155417
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/98121
dc.subjectMesoscale and Nanoscale Physics
dc.subjectDisordered Systems and Neural Networks
dc.subjectMaterials Science
dc.titleElectron correlations in metal nanoparticles with spin-orbit scattering
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