High-resolution superconducting single-flux quantum comparator for sub-Kelvin temperatures

Loading...
Thumbnail Image
Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2006
Major/Subject
Mcode
Degree programme
Language
en
Pages
133505/1-3
Series
Applied Physics Letters, Volume 89, Issue 13
Abstract
A design of sub-Kelvin single-flux quantum (SFQ) circuits with reduced power dissipation and additional cooling of shunt resistors has been developed and characterized. The authors demonstrate operation of SFQ comparators with current resolution of 40nA at 2GHz sampling rate. Due to improved cooling the electron temperature in shunt resistors of a SFQ comparator is below 50mK when the bath temperature is about 30mK.
Description
Keywords
comparators, resistors, critical currents, electric measurements, probability theory
Citation
Savin, A. M. & Pekola, Jukka & Holmqvist, T. & Hassel, J. & Grönberg, L. & Helistö, P. & Kidiyarova-Shevchenko, A. 2006. High-resolution superconducting single-flux quantum comparator for sub-Kelvin temperatures. Applied Physics Letters. Volume 89, Issue 13. P. 133505/1-3. ISSN 0003-6951 (printed). DOI: 10.1063/1.2357858.