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Evidence for universal conductance fluctuations in an open quantum dot under a strictly parallel magnetic field

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Gustin, C. Faniel, Sébastien [UCL] Hackens, Benoît [UCL] De Poortere, EP Shayegan, M. Bayot, Vincent [UCL]

We investigate the transport properties of semiconductor ballistic cavities subject to a parallel magnetic field. Universal conductance fluctuations are observed on two GaAs/AlGaAs quantum well samples with one and two occupied carrier subbands, respectively. Large differences between the two open quantum dots in both the amplitude and frequency distribution of these fluctuations are analyzed in terms of electron orbital motion and magnetic subband depopulation. (C) 2002 Elsevier Science B.V. All rights reserved.

Document type Communication à un colloque (Conference Paper) – Présentation orale avec comité de sélection
Access type Accès restreint
Publication date 2003
Language Anglais
Conference "International Conference on Superlattices Nano-Structures and Nano-Devices (ICSNN-02)", TOULOUSE(France) (Jul 22-26, 2002)
Journal information "Physica E: Low-Dimensional Systems and Nanostructures" - Vol. 17, no. 1-4, p. 154-155 (2003)
Peer reviewed yes
issn 1386-9477
e-issn 1873-1759
Publisher Elsevier Science Bv (Amsterdam)
Affiliations UCL - FSA/MAPR - Département des sciences des matériaux et des procédés
UCL - FSA/ELEC - Département d'électricité
Keywords Open Quantum Dots ; Quantum Chaos ; Orbital Effect
Links
Bibliographic reference Gustin, C. ; Faniel, Sébastien ; Hackens, Benoît ; De Poortere, EP ; Shayegan, M. ; et. al. Evidence for universal conductance fluctuations in an open quantum dot under a strictly parallel magnetic field.International Conference on Superlattices Nano-Structures and Nano-Devices (ICSNN-02) (TOULOUSE(France), Jul 22-26, 2002). In: Physica E: Low-Dimensional Systems and Nanostructures, Vol. 17, no. 1-4, p. 154-155 (2003)
Permanent URL http://hdl.handle.net/2078.1/61579