Direct measurements of electron thermalization in Coulomb blockade nanothermometers at millikelvin temperatures

Autor:	Jukka P. Pekola, K. K. Nummila, T. A. Knuuttila, W. Yao, J.P. Kauppinen
Rok vydání:	1998
Předmět:	Thermal equilibrium Materials science Thermalisation Condensed matter physics Tunnel junction Refrigerator car Coulomb blockade Biasing Dilution refrigerator Electron Condensed Matter Physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials
Zdroj:	Physica E: Low-dimensional Systems and Nanostructures. 3:224-228
ISSN:	1386-9477
DOI:	10.1016/s1386-9477(98)00207-0
Popis:	We investigate electron thermalization of tunnel junction arrays installed in a powerful dilution refrigerator whose mixing chamber can produce lattice temperatures down to 3 mK. The on-chip Coulomb blockade thermometers (CBT) against other thermometers at the mixing chamber provide direct information on the thermal equilibrium between the electronic system and the refrigerator. We can detect and discriminate between the heat load delivered through the wiring and that produced by the bias current of the CBT-measurement. The basic heat leak limits the minimum of the electronic temperature to slightly below 20 mK.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2d462e3d4c9bb4da46fb51c2f2979819 https://doi.org/10.1016/s1386-9477(98)00207-0 Zobrazit plný text záznamu Full Text from ScienceDirect