Measurements and modeling of phonon cooling by electron-tunneling refrigerators

IEEE Transactions on Applied Superconductivity

Volumn 15, Issue 2 PART I, 2005, Pages 556-559

  Miller, N A ^a   Clark, A M ^b   Williams, A ^c   Ruggiero, S T ^c   Hilton, G C ^d   Beall, J A ^d   Irwin, K D ^d   Vale, L R ^d   Ullom, J N ^d  

^a UNIVERSITY OF COLORADO   (United States)

^b BALL AEROSPACE AND TECHNOLOGIES CORP   (United States)

^c UNIVERSITY OF NOTRE DAME   (United States)

^d NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY   (United States)

Author keywords

Microrefrigerator; NIS junction; Phonon cooling; Tunneling

Indexed keywords

COMPUTER SIMULATION; CRYOGENIC EQUIPMENT; FINITE ELEMENT METHOD; LITHOGRAPHY; PHONONS; REFRIGERATION; SILICON NITRIDE; SUBSTRATES; THERMAL CONDUCTIVITY; THIN FILMS; TUNNEL JUNCTIONS;

MICROREFRIGERATORS; NIS JUNCTION; PHONON COOLING; X-RAY TRANSITION-EDGE-SENSOR (TES);

SOLID STATE PHYSICS;

EID: 22044457171     PISSN: 10518223     EISSN: None     Source Type: Journal    
DOI: 10.1109/TASC.2005.849917     Document Type: Conference Paper

References (8)

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8. e = 10 nm. However, when this value is used in the thermal model, the predicted temperature gradient in the cold-finger is much smaller than observed (44 mK instead of the measured 95 mK gradient). The spacing between Mn atoms is 1.8 nm. When this smaller value is used for the mean free path, the results of the thermal model are better matched to the data (88 mK gradient). We are currently studying this interesting effect.