1997/01/01 by Brian M. Andersen, I. V. Bobkova, P. J. Hirschfeld +5 · 2 citations
Engineering · Environmental Science · Physics and Astronomy · #Algorithm #Antiferromagnetism #Business #Coagulation and Flocculation Studies #Computer science #Condensed matter physics #Engineering #Environmental science #Function (biology) #Josephson effect #Materials science #Physics #Physics of Superconductivity and Magnetism #Process (computing) #Process engineering #Quantum and electron transport phenomena #Risk analysis (engineering) #Spin (aerodynamics) #Superconductivity #Surface and Thin Film Phenomena #Thermodynamics #cond-mat.mes-hall #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.96.117005
published as Phys. Rev. Lett. 96, 117005 (2006) · 4 pages, 2 figures
openalex publication_date 1997/01/01 · arxiv created 2005/11/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11
We show that the dc Josephson current through superconductor-antiferromagnet-superconductor (S-AF-S) junctions manifests a remarkable atomic-scale dependence on the interlayer thickness. At low temperatures the junction is either a 0 or pi junction depending on whether the AF interlayer consists of an even or odd number of atomic layers. This is associated with different symmetries of the AF interlayers in the two cases. In the junction with odd AF interlayers an additional pi- 0 transition can take place as a function of temperature. This originates from the interplay of spin-split Andreev bound states. Experimental implications of these theoretical findings are discussed.