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Spontaneous Currents in Superconducting Systems with Strong Spin-Orbit Coupling

2017/02/17 by S. Mironov, С. В. Миронов, A. I. Buzdin +1
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Coupling (piping) #Current (fluid) #Electronic and Structural Properties of Oxides #Ferromagnetism #London penetration depth #Magnetic field #Materials science #Orbit (dynamics) #Penetration depth #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Spin–orbit interaction #Superconductivity #Vortex #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.118.077001

published as Phys. Rev. Lett. 118, 077001 (2017) · 7 pages, 3 figures

openalex publication_date 2017/02/17 · arxiv created 2017/04/13 · arxiv updated 2017/04/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We show that Rashba spin-orbit coupling at the interface between a superconductor and a ferromagnet should produce a spontaneous current in the atomic thickness region near the interface. This current is counterbalanced by the superconducting screening current flowing in the region of the width of the London penetration depth near the interface. Such a current-carrying state creates a magnetic field near the superconductor surface, generates a stray magnetic field outside the sample edges, changes the slope of the temperature dependence of the critical field Hc3, and may generate the spontaneous Abrikosov vortices near the interface.

Citations