Shot noise thermometry down to 10mK
The authors report measurements of the shot noise thermometer (SNT), a primary thermometer based on the electronic noise from a tunnel junction, in the range from 10to200mK. They demonstrate operation of the SNT down to 10mK with 10% accuracy at the lowest measured temperature. At 10mK, where for a...
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Veröffentlicht in: | Applied physics letters 2006-10, Vol.89 (18) |
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Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | The authors report measurements of the shot noise thermometer (SNT), a primary thermometer based on the electronic noise from a tunnel junction, in the range from 10to200mK. They demonstrate operation of the SNT down to 10mK with 10% accuracy at the lowest measured temperature. At 10mK, where for a measurement frequency of f=450MHz, hf=2.5kBT, the authors demonstrate that provided that quantum corrections are taken into account, the SNT continues to be a practical thermometer. They also show that self-heating is not a measurable problem and demonstrate a simplified readout of the SNT. |
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ISSN: | 0003-6951 1077-3118 |
DOI: | 10.1063/1.2382736 |