Three-orbital Kondo effect in single quantum dot system with plural electrons

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dc.creatorKita, Tomoko
dc.creatorSakano, Rui
dc.creatorOhashi, Takuma
dc.creatorSuga, Sei-ichiro
dc.date2008-07-11
dc.date.accessioned2026-07-07T10:01:36Z
dc.date.available2026-07-07T10:01:36Z
dc.descriptionWe study the Kondo effect and related transport properties in orbitally degenerate vertical quantum dot systems with plural electrons. Applying the non-crossing approximation to the three-orbital Anderson impurity model with the finite Coulomb interaction and Hund-coupling, we investigate the magnetic-field dependence of the conductance and thermopower. We also introduce an additional orbital splitting to take account of the realistic many-body effect in the vertical quantum dot system. It is clarified how the three-orbital Kondo effect influences the transport properties via the modulation of the Kondo temperature and unitary limit of transport quantities due to the change of the symmetry in the system.
dc.description11 pages, 10 figures, accepted for publication in J. Phys. Soc. Jpn
dc.identifierhttps://arxiv.org/abs/0807.1780
dc.identifierhttp://arxiv.org/abs/0807.1780
dc.identifierJ. Phys. Soc. Jpn. 77 (2008) 094707
dc.identifierdoi:10.1143/JPSJ.77.094707
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/168686
dc.subjectStrongly Correlated Electrons
dc.subjectMesoscale and Nanoscale Physics
dc.titleThree-orbital Kondo effect in single quantum dot system with plural electrons
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