Seminarium om kondenserade materiens fysik - Attila Geresdi

Attila Geresdi: Breaking the millikelvin barrier: ultra-low temperature quantum electronics

Abstract

New scientific discoveries in the broad field of quantum nanoelectronics have always been linked to the development of cryogenic refrigeration technologies. Colder electron temperatures allow for the observation of novel phenomena on a lower energy scale, which is limited by the thermal energy.
In this talk, I will show our efforts of cooling down nanoelectronic devices well below 1 mK, and discuss the associated challenges with materials and metrology. Our results pave the way for quantum nanoelectronic devices with on-chip integration of electron cooling in the millikelvin and microkelvin regime.

References
N. Yurttagul, M. Sarsby, A. Geresdi, Phys. Rev. Applied 12, 011005 (2019)
M. Sarsby, N. Yurttagul, A. Geresdi, Nature Communications 11, 1492 (2020)
N. Yurttagul, M. Sarsby, A. Geresdi, Journal of Low Temperature Physics 204, 143 (2021)

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Seminarium om kondenserade materiens fysik