Fermi surface and order parameter driven vortex lattice structure transitions in twin-free YBa2Cu3O7

J. S. White, V. Hinkov, R. W. Heslop +12

We report on small-angle neutron scattering studies of the intrinsic vortex lattice (VL) structure in detwinned YBa2Cu3O7 at 2 K, and in fields up to 10.8 T. Because of the suppres…