Thermal Conductance of a Single-Electron Transistor
We report on combined measurements of heat and charge transport through a single-electron transistor. The device acts as a heat switch actuated by the voltage applied on the gate. The Wiedemann-Franz law for the ratio of heat and charge conductances is found to be systematically violated away from t...
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| Published in | Physical review letters Vol. 119; no. 7; p. 077701 |
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| Main Authors | , , , , , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
United States
18.08.2017
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| Online Access | Get more information |
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| Abstract | We report on combined measurements of heat and charge transport through a single-electron transistor. The device acts as a heat switch actuated by the voltage applied on the gate. The Wiedemann-Franz law for the ratio of heat and charge conductances is found to be systematically violated away from the charge degeneracy points. The observed deviation agrees well with the theoretical expectation. With a large temperature drop between the source and drain, the heat current away from degeneracy deviates from the standard quadratic dependence in the two temperatures. |
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| AbstractList | We report on combined measurements of heat and charge transport through a single-electron transistor. The device acts as a heat switch actuated by the voltage applied on the gate. The Wiedemann-Franz law for the ratio of heat and charge conductances is found to be systematically violated away from the charge degeneracy points. The observed deviation agrees well with the theoretical expectation. With a large temperature drop between the source and drain, the heat current away from degeneracy deviates from the standard quadratic dependence in the two temperatures. |
| Author | Skvortsov, M A Dutta, B König, J Antonenko, D S Winkelmann, C B Pekola, J P Peltonen, J T Kubala, B Meschke, M Courtois, H |
| Author_xml | – sequence: 1 givenname: B surname: Dutta fullname: Dutta, B organization: Université Grenoble Alpes, CNRS, Institut Néel, 25 Avenue des Martyrs, 38042 Grenoble, France – sequence: 2 givenname: J T surname: Peltonen fullname: Peltonen, J T organization: Low Temperature Laboratory, Department of Applied Physics, Aalto University School of Science, P.O. Box 13500, 00076 Aalto, Finland – sequence: 3 givenname: D S surname: Antonenko fullname: Antonenko, D S organization: Moscow Institute of Physics and Technology, Moscow, 141700, Russia – sequence: 4 givenname: M surname: Meschke fullname: Meschke, M organization: Low Temperature Laboratory, Department of Applied Physics, Aalto University School of Science, P.O. Box 13500, 00076 Aalto, Finland – sequence: 5 givenname: M A surname: Skvortsov fullname: Skvortsov, M A organization: Moscow Institute of Physics and Technology, Moscow, 141700, Russia – sequence: 6 givenname: B surname: Kubala fullname: Kubala, B organization: Institute for Complex Quantum Systems and IQST, University of Ulm, 89069 Ulm, Germany – sequence: 7 givenname: J surname: König fullname: König, J organization: Theoretische Physik and CENIDE, Universität Duisburg-Essen, 47048 Duisburg, Germany – sequence: 8 givenname: C B surname: Winkelmann fullname: Winkelmann, C B organization: Université Grenoble Alpes, CNRS, Institut Néel, 25 Avenue des Martyrs, 38042 Grenoble, France – sequence: 9 givenname: H surname: Courtois fullname: Courtois, H organization: Université Grenoble Alpes, CNRS, Institut Néel, 25 Avenue des Martyrs, 38042 Grenoble, France – sequence: 10 givenname: J P surname: Pekola fullname: Pekola, J P organization: Low Temperature Laboratory, Department of Applied Physics, Aalto University School of Science, P.O. Box 13500, 00076 Aalto, Finland |
| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/28949696$$D View this record in MEDLINE/PubMed |
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