Exciton Mediated Superconductivity in PrOs4Sb12

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dc.creatorMatsumoto, Masashige
dc.creatorKoga, Mikito
dc.date2005-11-17
dc.date.accessioned2026-07-07T06:46:12Z
dc.date.available2026-07-07T06:46:12Z
dc.descriptionThe most important character of the exotic superconductor PrOs4Sb12 is the existence of low-lying excitations (excitons) with a finite energy gap and it appears as the magnetic field-induced order above 4.5 T. We focus on the a_u conduction band, which hybridizes with a Pr 4f^2 state strongly, coupled to the excitons. It results in an attractive interaction between the conduction electrons. The symmetry of the superconducting order parameter is determined by dispersion relation of the exciton. For the bcc system PrOs4Sb12, a d-wave state [kx ky + omega ky kz + omega^2 kz kx, omega=exp(pm i 2 pi/3)] is stabilized with broken time reversal symmetry.
dc.description4 pages
dc.identifierhttps://arxiv.org/abs/cond-mat/0511420
dc.identifierhttp://arxiv.org/abs/cond-mat/0511420
dc.identifierJ. Phys. Soc. Jpn. 73 (2004) 1135
dc.identifierdoi:10.1143/JPSJ.73.1135
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/103261
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleExciton Mediated Superconductivity in PrOs4Sb12
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