caa a22 4500 44538154X CHVBK 20180317143019.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10948-010-1041-0 doi (NATIONALLICENCE)springer-10.1007/s10948-010-1041-0 Magnetic Proximity Effects in V/Fe Superconductor/Ferromagnet Single Bilayer Revealed by Waveguide-Enhanced Polarized Neutron Reflectometry [Elektronische Daten] [Yu. Khaydukov, V. Aksenov, Yu. Nikitenko, K. Zhernenkov, B. Nagy, A. Teichert, R. Steitz, A. Rühm, L. Bottyán] Polarized neutron reflectometry is used to study the magnetic proximity effect in a superconductor/ferromagnet (SC/FM) system of composition Cu(32nm)/ V(40nm)/Fe(1nm)/MgO. In contrast to previous studies, here a single SC/FM bilayer, is studied and multilayer artefacts are excluded. The necessary signal enhancement is achieved by waveguide resonance, i.e., preparing the V(40nm)/Fe(1nm) SC/FM bilayer sandwiched by the highly reflective MgO substrate and Cu top layer, respectively. A new magnetic state of the system was observed at temperatures below 0.7T C manifested in a systematic change in the height and width of the waveguide resonance peak. Upon increasing the temperature from 0.7T C to T C, a gradual decay of this state is observed, accompanied by a 5% growth of the diffuse scattering. This behavior can be explained in a natural way by the polarization of the superconducting electrons upon the SC transition, i.e., an appearance of additional induced magnetization within the SC, due to the proximity of the FM layer. Springer Science+Business Media, LLC, 2010 Proximity effects nationallicence Superconductors nationallicence Ferromagnets nationallicence Polarized neutron reflectometry nationallicence Waveguides nationallicence Khaydukov Yu Joint Institute for Nuclear Research, Joliot-Curie 6, 141980, Dubna, Russia aut Aksenov V. Joint Institute for Nuclear Research, Joliot-Curie 6, 141980, Dubna, Russia aut Nikitenko Yu Joint Institute for Nuclear Research, Joliot-Curie 6, 141980, Dubna, Russia aut Zhernenkov K. Joint Institute for Nuclear Research, Joliot-Curie 6, 141980, Dubna, Russia aut Nagy B. KFKI Research Institute for Particle and Nuclear Physics, Budapest, Hungary aut Teichert A. Helmholtz-Zentrum für Materialien und Energie, Berlin, Germany aut Steitz R. Helmholtz-Zentrum für Materialien und Energie, Berlin, Germany aut Rühm A. Max-Planck-Institut für Metallforschung, Stuttgart, Germany aut Bottyán L. KFKI Research Institute for Particle and Nuclear Physics, Budapest, Hungary aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 961-968 1557-1939 24:1-2<961 2011 24 10948 https://doi.org/10.1007/s10948-010-1041-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-1041-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Khaydukov Yu Joint Institute for Nuclear Research, Joliot-Curie 6, 141980, Dubna, Russia aut NATIONALLICENCE 700 1- Aksenov V. Joint Institute for Nuclear Research, Joliot-Curie 6, 141980, Dubna, Russia aut NATIONALLICENCE 700 1- Nikitenko Yu Joint Institute for Nuclear Research, Joliot-Curie 6, 141980, Dubna, Russia aut NATIONALLICENCE 700 1- Zhernenkov K. Joint Institute for Nuclear Research, Joliot-Curie 6, 141980, Dubna, Russia aut NATIONALLICENCE 700 1- Nagy B. KFKI Research Institute for Particle and Nuclear Physics, Budapest, Hungary aut NATIONALLICENCE 700 1- Teichert A. Helmholtz-Zentrum für Materialien und Energie, Berlin, Germany aut NATIONALLICENCE 700 1- Steitz R. Helmholtz-Zentrum für Materialien und Energie, Berlin, Germany aut NATIONALLICENCE 700 1- Rühm A. Max-Planck-Institut für Metallforschung, Stuttgart, Germany aut NATIONALLICENCE 700 1- Bottyán L. KFKI Research Institute for Particle and Nuclear Physics, Budapest, Hungary aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 961-968 1557-1939 24:1-2<961 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer