Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session V29: Hybrid Systems: Coupling to Ensembles and Single Electrons in Helium
2:30 PM–5:30 PM,
Thursday, March 7, 2019
BCEC
Room: 162A
Sponsoring
Unit:
DQI
Chair: Charlotte Boettcher
Abstract: V29.00010 : Thermopower based hot electron thermometry of helium surface states at 1.6 K*
4:42 PM–4:54 PM
Presenter:
Ethan Kleinbaum
(Princeton University)
Authors:
Ethan Kleinbaum
(Princeton University)
Stephen Aplin Lyon
(Princeton University)
We have developed a method to probe SSE temperature using the Seebeck effect. We demonstrate the use of this technique by measuring SSE temperature as a function of applied power at a bath temperature of 1.6 K in a microchannel device with 0.6 μm deep helium. We compare our measurements to the predictions for both vapor atom and 2-ripplon scattering in the single electron regime. Our measurements demonstrate a strong qualitative agreement with the predictions and we attribute small quantitative discrepancies to many body effects. We conclude that this technique provides a reliable and flexible measure of electron temperature.
*This research was supported by the NSF (Grant No. DMR-1506862).
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