Relaxation of the magnetic state of a ferromagnetic–superconducting layered structure |
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| Authors: | V D Zhaketov Yu V Nikitenko A V Petrenko A Csik V L Aksenov F Radu |
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| Institution: | 1.Joint Institute for Nuclear Research,Dubna,Russia;2.MTA Atomki, Institute for Nuclear Research,Debrecen,Hungary;3.Konstantinov St. Petersburg Institute for Nuclear Physics,National Research Center, “Kurchatov Institute,”,Gatchina,Russia;4.Helmoltz-Zentrum Berlin für Materialen und Energie,Berlin,Germany |
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| Abstract: | We have proposed a real-time method of neutron reflectometry. The magnetic state of the Ta/V/FM/Nb/Si ferromagnetic–superconducting system has been analyzed. Relaxation of the inhomogeneous magnetic state with a characteristic time of several hours, which depends on the magnetic field magnitude and temperature, has been observed. The relaxation of the domain structure has changed upon a transition of the V and Nb layers to the superconducting state. It has been concluded that real-time reflectometry data for polarized neutrons are important for determining the origin of magnetism in ferromagnetic–superconducting layered structures. |
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