2002/09/19 by I. Baladie, I. Baladié, A. I. Buzdin +1 · 63 citations
Physics and Astronomy · #Antiparallel (mathematics) #Condensed matter physics #Ferromagnetism #Magnetic field #Magnetic properties of thin films #Magnetization #Materials science #Metallurgy #Nanoscopic scale #Nanotechnology #Niobium #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Spin valve #Superconductivity #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.67.014523
published in Physical review. B, Condensed matter 67(1) (American Physical Society) · 20 pages, 5 figures, submitted to PRB
arxiv created 2002/09/19 · openalex publication_date 2003/01/23 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The theoretical description of the thermodynamic properties of ferromagnet/superconductor/ferromagnet (F/S/F) systems of nanoscopic scale is proposed. Their superconducting characteristics strongly depend on the mutual orientation of the ferromagnetic layers. In addition, depending on the transparency of S/F interfaces, the superconducting critical temperature can exhibit four different types of dependences on the thickness of the F layer. The obtained results permit one to give some practical recommendations for the spin-valve effect experimental observation. In this spin-valve sandwich, we also expect a spontaneous transition from a parallel to antiparallel ferromagnetic moment orientation, due to the gain in the superconducting condensation energy.