Variation of the extended s-wave superconducting order parameter: From s-wave to g-wave
نویسندگان
چکیده
منابع مشابه
Sign reversal of the order parameter in s - wave superconductors
We show that in a superconductor where two or more bands cross the Fermi level it is possible, in the framework of the conventional (s-wave) BCS theory, that the sign of the superconducting gap is different on the different sheets of the Fermi surface. At least one of two conditions has to be satisfied: (1) The interband pairing interaction is weaker than the Coulomb pseudopotential, while the ...
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ژورنال
عنوان ژورنال: Modern Physics Letters B
سال: 2015
ISSN: 0217-9849,1793-6640
DOI: 10.1142/s0217984915501638