Helical and stripe vortex phases in non-centrosymmetric superconductors

When magnetic fields are applied to non-centrosymmetric superconductors, helical or stripe vortex phases are formed. We develop a quasiclassical microscopic theory for these phases. We will study the resulting phase diagrams and physical properties of these phases as a function of the relative density of states of the two spin-split bands and with varying Zeeman-field strength. We apply these results to CePt3Si, CeRhSi3, CeIrSi3, KOs2O6, Li2Pt3B and Li2Pd3B.