Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/101768
Title: Magnetic proximity effect in Nb/Gd superlattices seen by neutron reflectometry
Authors: Khaydukov, Yu. N.
Kravtsov, E. A.
Zhaketov, V. D.
Progliado, V. V.
Kim, G.
Nikitenko, Yu. V.
Keller, T.
Ustinov, V. V.
Aksenov, V. L.
Keimer, B.
Issue Date: 2019
Publisher: American Physical Society
Citation: Magnetic proximity effect in Nb/Gd superlattices seen by neutron reflectometry / Yu. N. Khaydukov, E. A. Kravtsov, V. D. Zhaketov, et al. — DOI 10.1103/PhysRevB.99.140503 // Physical Review B. — 2019. — Vol. 99. — Iss. 14. — 140503.
Abstract: We have used spin-polarized neutron reflectometry to investigate the magnetization profile of superlattices composed of ferromagnetic Gd and superconducting Nb layers. We have observed a partial suppression of ferromagnetic (F) order of Gd layers in [Gd(dF)/Nb(25 nm)]12 superlattices below the superconducting (S) transition of the Nb layers. The amplitude of the suppression decreases with increasing dF. By analyzing the neutron spin asymmetry we conclude that the observed effect has an electromagnetic origin - the proximity-coupled S layers screen out the external magnetic field and thus suppress the F response of the Gd layers inside the structure. Our investigation demonstrates the considerable influence of electromagnetic effects on the magnetic properties of S/F systems. © 2019 American Physical Society.
Keywords: FERROMAGNETIC MATERIALS
FERROMAGNETISM
NEUTRON REFLECTION
REFLECTION
EXTERNAL MAGNETIC FIELD
MAGNETIC PROXIMITY
MAGNETIZATION PROFILE
NEUTRON REFLECTOMETRY
NEUTRON SPINS
PROXIMITY COUPLED
S-LAYERS
SPIN-POLARIZED
REFLECTOMETERS
URI: http://hdl.handle.net/10995/101768
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85065132295
PURE ID: 9315905
ISSN: 24699950
DOI: 10.1103/PhysRevB.99.140503
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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