2012/08/09 by Keisuke Shigeta, K. Shigeta, Seiichiro Onari +3
Physics and Astronomy · #Basis (linear algebra) #Coulomb #Coupling (piping) #Homogeneous space #Hubbard model #Pairing #Physics of Superconductivity and Magnetism #Rare-earth and actinide compounds #Superconductivity #Symmetry (geometry) #Topological Materials and Phenomena #cond-mat.supr-con
paper · pdf · doi:10.7566/jpsj.82.014702
published as J. Phys. Soc. Jpn. 82, 014702 (2013) · 11 pages, 12 figures
arxiv created 2012/08/09 · openalex publication_date 2013/01/15 · arxiv updated 2013/02/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.