INDUCTIVE REPLY OF HIGH-TC RF SQUID IN THE PRESENCE OF LARGE THERMAL FLUCTUATIONS

Citation
E. Ilichev et al., INDUCTIVE REPLY OF HIGH-TC RF SQUID IN THE PRESENCE OF LARGE THERMAL FLUCTUATIONS, Journal of low temperature physics, 106(3-4), 1997, pp. 503-508
Citations number
6
Categorie Soggetti
Physics, Applied
ISSN journal
00222291
Volume
106
Issue
3-4
Year of publication
1997
Pages
503 - 508
Database
ISI
SICI code
0022-2291(1997)106:3-4<503:IROHRS>2.0.ZU;2-M
Abstract
Inductive reply of the high Tc rf SQUIDs were investigated at 77 K. It is shown experimentally that the SQUIDs operate in adiabatic nonhyste retic (dispersive) mode. The SQUIDs were operable even if (i) the Jose phson coupling energy is considerably smaller than the thermal energy, and (ii) the SQUID inductance as larger than the so called ''fluctuat ion-threshold inductance''. The influence of thermal noise on the resp onse of nonhysteretic SQUIDs is estimated theoretically. The validity limits of the estimation are discussed.