Ultralow temperature Josephson primary thermometry
| Autor: | S.L. Thomasson, C.M. Gould |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Josephson effect
Materials science business.industry Preamplifier Thermal fluctuations Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Pi Josephson junction SQUID Scanning SQUID microscopy law Thermometer Optoelectronics Electrical and Electronic Engineering Resistor business |
| Zdroj: | Physica B: Condensed Matter. :1992-1993 |
| ISSN: | 0921-4526 |
| DOI: | 10.1016/s0921-4526(99)02742-8 |
| Popis: | We are developing a primary thermometer for operation from 4.2 K down to millikelvin temperatures. The principle of the thermometer is to measure thermal fluctuations in a thin-film resistor by transducing them into phase fluctuations in a Josephson junction. These fluctuations are then inductively coupled to a DC SQUID preamplifier. All elements are fabricated on a single integrated circuit chip in niobium technology using Ti/Pd/Au as shunt resistors and the thermometric device. Our SQUIDs are fully operational down to millikelvin temperatures. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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