Odd-frequency superconducting pairing in multiband superconductors
2013 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 88, no 10, 104514- p.Article in journal (Refereed) Published
We point out that essentially all multiband superconductors have an odd-frequency pairing component, as follows from a general symmetry analysis of even- and odd-frequency pairing states. We show that odd-frequency superconducting pairing requires only a finite band hybridization, or scattering, and nonidentical intraband order parameters, of which only one band needs to be superconducting. Under these conditions odd-frequency odd-interband pairing is always present. From a symmetry analysis we establish a complete reciprocity between parity in band index and frequency.
Place, publisher, year, edition, pages
2013. Vol. 88, no 10, 104514- p.
IdentifiersURN: urn:nbn:se:uu:diva-209854DOI: 10.1103/PhysRevB.88.104514ISI: 000324945900001OAI: oai:DiVA.org:uu-209854DiVA: diva2:659897