Print Email Facebook Twitter Magnetic flux tuning of Fano-Kondo interplay in a parallel double quantum dot system Title Magnetic flux tuning of Fano-Kondo interplay in a parallel double quantum dot system Author Agundez, R.R. Verduijn, J. Rogge, S. Blaauboer, M. Faculty Applied Sciences Department QN/Quantum Nanoscience Date 2013-06-06 Abstract We investigate the Fano-Kondo interplay in an Aharonov-Bohm ring with an embedded noninteracting quantum dot and a Coulomb interacting quantum dot. Using a slave-boson mean-field approximation we diagonalize the Hamiltonian via scattering matrix theory and derive the conductance in the form of a Fano expression, which depends on the mean-field parameters. We predict that in the Kondo regime the magnetic field leads to a gapped energy level spectrum due to hybridization of the noninteracting QD state and the Kondo state, and can quantum-mechanically alter the electron's path preference. We demonstrate that an abrupt symmetry change in the Fano resonance, as seen experimentally, could be a consequence of an underlying Kondo channel. To reference this document use: http://resolver.tudelft.nl/uuid:679ad6a8-3461-4194-857b-19fc6237c055 DOI https://doi.org/10.1103/PhysRevB.87.235407 Publisher American Physical Society ISSN 1098-0121 Source http://link.aps.org/doi/10.1103/PhysRevB.87.235407 Source Physical Review B, 87 (23), 2013 Part of collection Institutional Repository Document type journal article Rights © 2013 American Physical Society Files PDF Agundez_2013.pdf 977.04 KB Close viewer /islandora/object/uuid:679ad6a8-3461-4194-857b-19fc6237c055/datastream/OBJ/view