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Magnetic field dependencies of the critical current and of the resonant modes of dc SQUIDs fabricated from superconductors with s + id x 2 — y 2 order‐parameter symmetries
Author(s) -
Chesca Boris
Publication year - 1999
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/(sici)1521-3889(199909)8:6<511::aid-andp511>3.0.co;2-k
Subject(s) - squid , superconductivity , physics , condensed matter physics , josephson effect , homogeneous space , magnetic field , critical current , scanning squid microscopy , field (mathematics) , magnetic flux , current (fluid) , order (exchange) , flux (metallurgy) , magnetometer , quantum mechanics , materials science , biology , ecology , geometry , mathematics , gradiometer , finance , pure mathematics , economics , thermodynamics , metallurgy
The magnetic field dependencies of the critical current and of the self‐induced resonant modes of dc SQUIDs fabricated from superconductors with s + id x 2 — y 2order parameter symmetries are calculated. Combining the complementary results of the two dependencies, an unambiguous determination of the ratio of the s and d x 2 — y 2wave components is possible. Two cases of SQUID configurations are analyzed for which the flux coupled to the two Josephson junctions of the dc SQUID is either negligible or significant.