Noise Thermometry below 4 K
نویسندگان
چکیده
منابع مشابه
Erratum: Nanoelectronic primary thermometry below 4 mK
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متن کاملNanoelectronic primary thermometry below 4 mK
Cooling nanoelectronic structures to millikelvin temperatures presents extreme challenges in maintaining thermal contact between the electrons in the device and an external cold bath. It is typically found that when nanoscale devices are cooled to ∼ 10 mK the electrons are significantly overheated. Here we report the cooling of electrons in nanoelectronic Coulomb blockade thermometers below 4 m...
متن کاملProper Noise and Thermometry
Statistical thermodynamic phenomenon of fluctuations (noise) appearance in the controlled substance is under consideration in the proposed work. Their types as well as the relationship among them revealing in the totality of influences on the characteristics of a noise thermometer as a certified metrological mean of measuring the parameters of electric noise have been researched. The background...
متن کاملInfluence of Temperature Gradients on Tunnel Junction Thermometry below 1 K : Cooling and Electron - Phonon Coupling
We have studied thermal gradients in thin Cu and AlMn wires, both experimentally and theoretically. In the experiments, the wires were Joule heated non-uniformly at sub-Kelvin temperatures, and the resulting temperature gradients were measured using normal metal-insulator-superconducting tunnel junctions. The data clearly shows that even in reasonably well conducting thin wires with a short (∼ ...
متن کاملMetallic Coulomb blockade thermometry down to 10 mK and below.
We present an improved nuclear refrigerator reaching 0.3 mK, aimed at microkelvin nanoelectronic experiments, and use it to investigate metallic Coulomb blockade thermometers (CBTs) with various resistances R. The high-R devices cool to slightly lower T, consistent with better isolation from the noise environment, and exhibit electron-phonon cooling [proportional] T(5) and a residual heat-leak ...
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ژورنال
عنوان ژورنال: Japanese Journal of Applied Physics
سال: 1987
ISSN: 0021-4922,1347-4065
DOI: 10.7567/jjaps.26s3.1739