2016/02/09 by Aviram Steinbok, Karen Michaeli · 2 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Angular momentum #Condensed matter physics #Cooper pair #Magnetic and transport properties of perovskites and related materials #Magnetic field #Momentum (technical analysis) #Pairing #Phase transition #Physics #Physics of Superconductivity and Magnetism #Point reflection #Quantum electrodynamics #Quantum mechanics #Superconductivity #Symmetry (geometry) #Zeeman effect #cond-mat.mes-hall #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.95.184515
published in Physical review. B./Physical review. B 95(18) (American Physical Society) · 6 pages, 4 figures
arxiv created 2016/02/09 · openalex created_date 2016/06/24 · openalex publication_date 2017/05/24 · arxiv updated 2017/05/31 · openalex updated_date 2026/08/05
We analyze the effect of magnetic fluctuations in superconductors with strong spin-orbit coupling and show that they drive a phase transition between two superconducting states: a conventional phase with zero center-of-mass momentum of Cooper pairs, and an exotic phase with nonzero pair momentum. The latter is found to exhibit persistent currents without magnetic field in doubly connected geometries such as rings. Surprisingly, the transition temperature into the superconducting state can be increased by applying a Zeeman magnetic field.