Volume 58, Number 3, May 2002
|Page(s)||401 - 407|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 August 2002|
Possibility of two-channel spin- Kondo conductance in a quantum dot
Istituto Nazionale di Fisica della Materia (INFM)
Unità di Napoli - Napoli, Italy
2 Dipartimento di Scienze Fisiche, Università di Napoli “Federico II” Monte S. Angelo - via Cintia, I-80126 Napoli, Italy
3 GES, UMR 5650, Université Montpellier II 34095 Montpellier Cedex 5, France
Accepted: 1 February 2002
By combining exact diagonalization with scaling method, we show that it is possible to realize two-channel spin- Kondo (2CK) conductance in a quantum dot at Coulomb Blockade, with an odd number of electrons and with contacts in a pillar configuration, as an applied orthogonal magnetic field B is tuned at an appropriate level crossing.
PACS: 71.10.Ay – Fermi-liquid theory and other phenomenological models / 72.15.Qm – Scattering mechanisms and Kondo effect / 73.23.-b – Electronic transport in mesoscopic systems
© EDP Sciences, 2002
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