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Phase diagram of a surface superconductor in parallel magnetic field

  • O. V. Dimitrova
  • M. V. Feigel’man
Condensed Matter

Abstract

The universal phase diagram of a 2D surface superconductor with generic Rashba interaction in a parallel magnetic field is found. In addition to the uniform BCS state, we find two inhomogeneous superconductive states, the stripe phase with Δ (r) ∝ cos(Qr) at high magnetic fields, and a new “helical” phase with Δ(r) ∝ exp(iQr) which intervenes between the BCS state and stripe phase at an intermediate magnetic field and temperature. We prove that the ground state for helical phase carries no current.

PACS numbers

74.25.Dw 74.25.Ha 

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Copyright information

© MAIK "Nauka/Interperiodica" 2003

Authors and Affiliations

  • O. V. Dimitrova
    • 1
  • M. V. Feigel’man
    • 1
  1. 1.Landau Institute for Theoretical PhysicsRussian Academy of SciencesMoscowRussia

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