Superconducting pairing symmetry on the extended Hubbard model in the presence of the Rashba-type spin-orbit coupling

Abstract

In order to study the pairing symmetry in non-centrosymmetric superconductors, we solve the linearized Eliashberg's equation on the two-dimensional extended Hubbard model in the presence of the Rashba-type spin-orbit coupling (RSOC) within the random phase approximation. In the presence of the RSOC, three types of pairing symmetries appear in the phase diagram with respect to the on-site Coulomb repulsion U and off-site one V. Each of pairing symmetries is admixture of spin-singlet and -triplet ones. On the basis of analytical study, it is found that the admixture of spin-singlet and -triplet components depends on not only the predominant pairing symmetry but also dispersion relation and pairing interaction.

11 pages, 12 figures

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Cited by in corpus (5)

• Even-odd parity transition in strongly correlated locally noncentrosymmetric superconductors : An application to CeRh${}_2$As${}_2$
• Rashba spin-orbit coupling in the square lattice Hubbard model: A truncated-unity functional renormalization group study
• Mixing of odd- and even-frequency pairings in strongly correlated electron systems under magnetic field
• Weyl semimetallic, Néel, spiral, and vortex states in the Rashba-Hubbard model
• Electron Interactions in Rashba Materials