6533b833fe1ef96bd129b7f2

RESEARCH PRODUCT

Integrated SINIS refrigerators for efficient cooling of cryogenic detectors

Mika PrunnilaT. I. SuppulaJukka P. PekolaJouni AhopeltoArttu LuukanenAlexander Savin

subject

Materials sciencebusiness.industrySchottky barrierDetectorElectrical engineeringRefrigerationCryogenicsTunnel barrierSuccessful operationTunnel junctionCondensed Matter::SuperconductivityCooling powerOptoelectronicsbusiness

description

In this paper we report recent results obtained with large area superconductor-insulator-normal metal-insulator-superconductor tunnel junction coolers. With the devices we have successfully demonstrated electronic cooling from 260 mK to 80 mK with a cooling power of 20 pW at 80 mK. At present, we are focusing on obtaining similar performance in cooling cryogenic detectors. Additionally, we present recent results of successful operation of a metalsemiconductor structure with a Schottky barrier acting as the tunnel barrier and the possibility to use this kind of structures for on-chip cooling.

https://doi.org/10.1063/1.1457666