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Odd-frequency pairing and Kerr effect in the heavy-fermion superconductor UPt3
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
2018 (English)In: Physical Review B, ISSN 2469-9950, E-ISSN 2469-9969, Vol. 97, no 6, article id 064505Article in journal (Refereed) Published
Abstract [en]

We study the emergence of odd-frequency superconducting pairing in UPt3. Starting from a tight-binding model accounting for the nonsymmorphic crystal symmetry of UPt3 and assuming an order parameter in the E-2u representation, we demonstrate that odd-frequency pairing arises very generally, as soon as intersublattice hopping or spin-orbit coupling is present. We also show that in the low temperature superconducting B phase, the presence of a chiral order parameter together with spin-orbit coupling, leads to additional odd-frequency pair amplitudes not present in the A or C phases. Furthermore, we show that a finite Kerr rotation in the B phase is only present if odd-omega pairing also exists.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2018. Vol. 97, no 6, article id 064505
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-346667DOI: 10.1103/PhysRevB.97.064505ISI: 000424501600003OAI: oai:DiVA.org:uu-346667DiVA, id: diva2:1191851
Funder
Swedish Research Council, 621-2014-3721Knut and Alice Wallenberg FoundationAvailable from: 2018-03-20 Created: 2018-03-20 Last updated: 2018-03-20Bibliographically approved

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Black-Schaffer, Annica M.

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