Thermal conductivity evidence for d_{x^2-y^2} pairing symmetry in the heavy-fermion CeIrIn5 superconductor

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dc.creatorKasahara, Y.
dc.creatorIwasawa, T.
dc.creatorShimizu, Y.
dc.creatorShishido, H.
dc.creatorShibauchi, T.
dc.creatorVekhter, I.
dc.creatorMatsuda, Y.
dc.date2007-12-17
dc.date.accessioned2026-07-07T09:40:04Z
dc.date.available2026-07-07T09:40:04Z
dc.descriptionQuasi-two dimensional CeIrIn5 contains two distinct domes with different heavy fermion superconducting states in its phase diagram. Here we pinned down the superconducting gap structure of CeIrIn5 in the second dome, located away from the antiferromagnetic quantum critical point, by the thermal transport measurements in magnetic fields rotated relative to the crystal axes. Clear fourfold oscillation was observed when the field is rotated within the ab-plane, while no oscillation was observed within the bc-plane. In sharp contrast to previous reports, our results are most consistent with d_{x^2-y^2} symmetry, implying that two superconducting phases have the same gap symmetry which appears to be mediated by antiferromagnetic spin fluctuations.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0712.2604
dc.identifierhttp://arxiv.org/abs/0712.2604
dc.identifierPhys. Rev. Lett. 100, 207003 (2008).
dc.identifierdoi:10.1103/PhysRevLett.100.207003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/161370
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleThermal conductivity evidence for d_{x^2-y^2} pairing symmetry in the heavy-fermion CeIrIn5 superconductor
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