Diffusion-based electron thermometry using a three-junction single-electron transistor.
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.
Swenson
L J
LJ
Department of Physics, University of California at Santa Barbara, Santa Barbara, California 93106, USA.
Wood
D K
DK
Cleland
A N
AN
D002151:Calorimetry / Q000295:instrumentation* / Q000379:methods; D004058:Diffusion; D004583:Electrons; D004867:Equipment Design; D019544:Equipment Failure Analysis; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D011846:Radio Waves; D012680:Sensitivity and Specificity; D013817:Thermography / Q000295:instrumentation* / Q000379:methods; D014173:Transistors, Electronic