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Title: Magnetism in structures with ferromagnetic and superconducting layers

Journal Article · · Journal of Experimental and Theoretical Physics
;  [1];  [2];  [3]; ;  [4];  [5]
  1. Helmholtz-Zentrum Berlin für Materialen un Energie (Germany)
  2. Joint Institute for Nuclear Research (Russian Federation)
  3. MTA Atomki, Institute for Nuclear Research (Hungary)
  4. Russian Research Centre Kurchatov Institute (Russian Federation)
  5. Russian Research Centre Kurchatov Institute, Konstantinov St. Petersburg Nuclear Physics Institute (Russian Federation)

The influence of superconductivity on ferromagnetism in the layered Ta/V/Fe{sub 1–x}V{sub x}/V/Fe{sub 1–x}V{sub x}/Nb/Si structures consisting of ferromagnetic and superconducting layers is studied using polarized neutron reflection and scattering. It is experimentally shown that magnetic structures with linear sizes from 5 nm to 30 μm are formed in these layered structures at low temperatures. The magnetization of the magnetic structures is suppressed by superconductivity at temperatures below the superconducting transition temperatures in the V and Nb layers. The magnetic states of the structures are shown to undergo relaxation over a wide magnetic-field range, which is caused by changes in the states of clusters, domains, and Abrikosov vortices.

OSTI ID:
22617089
Journal Information:
Journal of Experimental and Theoretical Physics, Vol. 124, Issue 1; Other Information: Copyright (c) 2017 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
Country of Publication:
United States
Language:
English