| DOI | Trouver le DOI : https://doi.org/10.1103/PhysRevB.45.9149 |
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| Auteur | Rechercher : Taylor, R.P.1; Rechercher : Fortin, S.1; Rechercher : Sachrajda, A.S.1; Rechercher : Adams, J.A.1; Rechercher : Fallahi, M.1; Rechercher : Davies, M.1; Rechercher : Coleridge, P.T.1; Rechercher : Zawadzki, P.1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut des sciences des microstructures du CNRC
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| Format | Texte, Article |
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| Résumé | Electrical-transport measurements were performed on a system consisting of two quantum point contacts (QPCs) in series, where one of the point contacts exhibited low-frequency telegraph noise due to single-impurity effects. We show this system to be ideal for the study of equilibration between the edge states that form at high magnetic fields. We investigate both the adiabatic and nonadiabatic regimes and show that in the transitional magnetic-field range the conductance is compatible with a complete equilibration but between a limited number of edge states only. We also discuss the equivalent experiment at zero field, where one can study the effect of the potential fluctuations on the collimation of the ballistic electrons. In addition, we confirm the observation of 4e2/h quantization in the conductance of a wide QPC. © 1992 The American Physical Society. |
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| Date de publication | 1992 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21274616 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 9b5e17dc-2c82-4d27-bca9-fe6d07c6e218 |
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| Enregistrement créé | 2015-03-18 |
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| Enregistrement modifié | 2020-04-23 |
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