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Oxygen in the Possible Role of Mediator of Pairing
Author(s) -
Foltin V.,
Seidenbusch W.,
Foltin J.,
Bischof R.,
Proyer S.
Publication year - 1998
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/(sici)1521-3951(199802)205:2<603::aid-pssb603>3.0.co;2-5
Subject(s) - pairing , oxygen , atmosphere (unit) , electrical resistivity and conductivity , oxygen atom , chemistry , chemical physics , materials science , condensed matter physics , physics , superconductivity , thermodynamics , molecule , quantum mechanics , organic chemistry
For an oxygen atmosphere it has been pointed out that even in conventionally prepared YBa 2 Cu 3 O 6+ x samples T c may be increased. In addition, resistivity versus temperature curves exhibit anomalies when the samples have been annealed in oxygen at 343 K for sufficiently long time. This effect is distinguished from the increase of T c when illuminated with a laser beam. An explanation of this effect has been suggested within Jansen‐Block model of indirect exchange pairing via oxygen atoms.