Phase diagram of a surface superconductor in parallel magnetic field
O. V. Dimitrova, M. V. Feigel'man
L. D. Landau Institute for Theoretical Physics RAS, 119334 Moscow, Russia
Universal phase diagram of 2D surface superconductor with generic
Rashba interaction in a parallel magnetic field is found. In addition to
uniform BCS state we find two inhomogeneous superconductive states, the
stripe phase with at high magnetic
fields, and a new "helical" phase with which intervenes between BCS state and stripe phase at intermediate
magnetic field and temperature.
We prove that the ground state for helical phase carries no current.