Spin-orbit coupled superconductivity: Rashba-Hubbard model on the square lattice
Sebastian Wolf, Stephan Rachel
Abstract
Rashba type spin-orbit coupling breaks inversion and spin symmetry, which can lead to a mixing of superconducting spin-singlet and spin-triplet states. Here, the authors present a numerical investigation of superconducting phases of the Rashba-Hubbard model. They study the two-dimensional square lattice as a paradigm and discuss how the arising superconducting phases, including helical spin-triplet condensates, emerge in detail and how to deal with them within a method which restricts paired electrons to momenta on the Fermi surface.
Topics & Concepts
Condensed matter physicsSquare latticeSuperconductivityPhysicsPoint reflectionHubbard modelFermi surfaceLattice (music)Spin (aerodynamics)ElectronFermi Gamma-ray Space TelescopeSinglet stateSpin–orbit interactionQuantum mechanicsExcited stateThermodynamicsAcousticsIsing modelPhysics of Superconductivity and MagnetismAdvanced Condensed Matter PhysicsElectronic and Structural Properties of Oxides