Neutron reflectometry studies of Gd/Nb and Cu30Ni70/Nb superlattices

Y. Khaydukov, E. Kravtsov, R. Morari, D. Lenk, L. Mustafa, G. Kim, M. Trapp, V. Zhaketov, V. Proglyado, V. Zrdavkov, Y. Nikitenko, H. A. Krug Von Nidda, T. Keller, R. Steitz, R. Tideks, A. Sidorenko, V. Ustinov, V. Aksenov, B. Keimer

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We performed a comparative study of magnetic proximity effects in [Gd(5nm)/Nb(25nm)]12 and [Cu30Ni70(6nm)/Nb(27nm)]12 superlattices of S/F type by means of transport measurements and neutron scattering. Transport measurements have shown that Gd/Nb and CuNi/Nb superlattices shows 3D and 2D type of superconductivity respectively. In the case of proximity coupled Gd/Nb superconductor the effective thickness of the superconducting region, 300nm is enough to expel significant amount of applied magnetic field which was detected by neutron scattering. In decoupled CuNi/Nb superlattice thickness of every superconducting layer is only 27nm which is not enough to expel applied magnetic field. Our study shows how neutron reflectometry can be applied to study proximity coupling in superconducting/ferromagnet heterostructures.

Original languageEnglish
Article number012060
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - Nov 28 2019
Event7th Euro-Asian Symposium on Trends in Magnetism, EASTMAG 2019 - Ekaterinburg, Russian Federation
Duration: Sep 8 2019Sep 13 2019

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Khaydukov, Y., Kravtsov, E., Morari, R., Lenk, D., Mustafa, L., Kim, G., Trapp, M., Zhaketov, V., Proglyado, V., Zrdavkov, V., Nikitenko, Y., Krug Von Nidda, H. A., Keller, T., Steitz, R., Tideks, R., Sidorenko, A., Ustinov, V., Aksenov, V., & Keimer, B. (2019). Neutron reflectometry studies of Gd/Nb and Cu30Ni70/Nb superlattices. Journal of Physics: Conference Series, 1389(1), [012060].