2000/11/30 by F. S. Bergeret, A. F. Volkov, K. B. Efetov · 13 citations
Physics and Astronomy · #Atomic physics #Component (thermodynamics) #Condensed matter physics #Conductance #Diffusion #Exchange interaction #Excited state #Ferromagnetism #Magnetic field #Magnetization #Materials science #Nanotechnology #Physics #Physics of Superconductivity and Magnetism #Proximity effect (electron beam lithography) #Quantum and electron transport phenomena #Quantum mechanics #Singlet state #Superconductivity #Theoretical and Computational Physics #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.86.4096
published as Phys. Rev. Lett. 86, 4096-4099 (2001) · 4 pages, 3 figures. Modified version. To be published in PRL
arxiv created 2001/03/05 · openalex publication_date 2001/04/30 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We analyze the proximity effect in a superconductor/ferromagnet (S/F) structure with a local inhomogeneity of the magnetization in the ferromagnet near the S/F interface. We demonstrate that not only the singlet but also the triplet component of the superconducting condensate is induced in the ferromagnet due to the proximity effect. The singlet component penetrates into the ferromagnet over a short length xi(h) = sqrt[D/h] ( h is the exchange field and D the diffusion coefficient), whereas the triplet component penetrates over a long length sqrt[D/epsilon] and leads to a significant increase of the ferromagnet conductance below the superconducting critical temperature Tc.