Positions of Point-Nodes in Borocarbide Superconductor YNi2B2C

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dc.creatorNagai, Yuki
dc.creatorKato, Yusuke
dc.creatorHayashi, Nobuhiko
dc.creatorYamauchi, Kunihiko
dc.creatorHarima, Hisatomo
dc.date2007-06-13
dc.date.accessioned2026-07-07T09:28:33Z
dc.date.available2026-07-07T09:28:33Z
dc.descriptionTo determine the superconducting gap function of YNi2B2C, we calculate the local density of states (LDOS) around a single vortex core with the use of Eilenberger theory and the band structure calculated by local density approximation assuming various gap structures with point-nodes at different positions. We also calculate the angular-dependent heat capacity in the vortex state on the basis of the Doppler-Shift method. Comparing our results with the STM/STS experiment, the angular-dependent heat capacity and thermal conductivity, we propose the gap-structure of YNi2B2C, which has the point-nodes and gap minima along <110>. Our gap-structure is consistent with all results of angular-resolved experiments.
dc.description7 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0706.1863
dc.identifierhttp://arxiv.org/abs/0706.1863
dc.identifierPhys. Rev. B 76, (2007) 214514.
dc.identifierdoi:10.1103/PhysRevB.76.214514
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/157462
dc.subjectSuperconductivity
dc.titlePositions of Point-Nodes in Borocarbide Superconductor YNi2B2C
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