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Diffusion-based electron thermometry using a three-junction single-electron transistor
L J Swenson1, D K Wood, A N Cleland
1Department of Physics, University of California at Santa Barbara, Santa Barbara, California 93106, USA.
Abstract:
We describe a new mK-range nanoscale thermometer, based on a unique three-junction radio frequency single-electron transistor. The three-junction geometry allows separation of the thermal and electronic pathways, providing a potentially significant reduction of measurement-induced Joule heating. A radio frequency embedding tank circuit allows very fast readout. We demonstrate electronic and thermal operation, supported by numerical simulations. Applications to minimal back-action calorimetry and bolometry are discussed.
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