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Supercurrent in Nodal Superconductors

Igor Khavkine·Hae-Young Kee·Kazumi Maki
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Abstract

In recent years, a number of nodal superconductors have been identified; d-wave superconductors in high T_c cuprates, CeCoIn$_5$, and κ-(ET)_2Cu(NCS)_2, 2D f-wave superconductor in Sr_2RuO_4 and hybrid s+g-wave superconductor in YNi_2B_2C. In this work we conduct a theoretical study of nodal superconductors in the presence of supercurrent. For simplicity, we limit ourselves to d-wave and 2D f-wave superconductors. We compute the quasiparticle density of states and the temperature dependence of the depairing critical current in nodal superconductors, both of which are accessible experimentally.

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Igor Khavkine, Hae-Young Kee, Kazumi Maki. 2004-08-31. Supercurrent in Nodal Superconductors. https://doi.org/10.1103/physrevb.70.184521

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