Abstract
The thermopower of a quantum point-contact exhibits a pronounced quantum size-effect. It is demonstrated how this effect can be observed using a current-heating technique. Subsequently, the quantized thermopower is utilized to measure, on a μm-scale, the electron temperature in a channel. This enables the identification of anomalies in the differential resistance of the channel as resulting from the occurrence of electronic Knudsen and Poiseuille flow.
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© 1995 Springer Science+Business Media Dordrecht
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Molenkamp, L.W., De Jong, M.J.M. (1995). The Point-Contact Thermometer and Its Application in the Study of Hydrodynamic Electron Flow. In: Welland, M.E., Gimzewski, J.K. (eds) Ultimate Limits of Fabrication and Measurement. NATO ASI Series, vol 292. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0041-0_13
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DOI: https://doi.org/10.1007/978-94-011-0041-0_13
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