Unconventional gap structures and the intermediate mixed state: A vortex lattice study of the noncentrosymmetric superconductor BiPd
We report on neutron scattering measurements on the vortex lattice of the noncentrosymmetric superconductor BiPd. We observe the existence of the intermediate mixed state, a region where Meissner and vortex lattice phases coexist, which is a feature of low type-II superconductors. Following this, we obtain an estimate of the value of using the extended London model. Finally, we find that the tempe