caa a22 4500 445381345 CHVBK 20180317143018.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10948-010-0888-4 doi (NATIONALLICENCE)springer-10.1007/s10948-010-0888-4 Influence of Barrier Width on Spin-Polarisation Measured byPoint Contact Andreev Reflection [Elektronische Daten] [P. Wójcik, A. Naylor, M. Wołoszyn, B. Hickey, B. Spisak, J. Adamowski] A modification of the Blonder-Tinkham-Klapwijk (BTK) model is proposed for the description of the ferromagnet-superconductor interface. Modelling the contact potential with a rectangular barrier, we investigate the influence of the barrier width at the interface on the value of spin polarisation measured by point contact Andreev reflection. Results suggesting that neglecting the width of the barrier at the interface can lead to an overestimation of the spin polarisation using the original BTK model are presented. This effect is particularly strong for low values of polarization and vanishes for high polarisation. The impact on analysis of the experimental data is also discussed. The Author(s), 2010 Point contact Andreev reflection nationallicence Spin polarisation nationallicence PCAR nationallicence BTK theory nationallicence Wójcik P. Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059, Kraków, Poland aut Naylor A. School of Physics and Astronomy, University of Leeds, LS2 9JT, Leeds, UK aut Wołoszyn M. Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059, Kraków, Poland aut Hickey B. School of Physics and Astronomy, University of Leeds, LS2 9JT, Leeds, UK aut Spisak B. Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059, Kraków, Poland aut Adamowski J. Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059, Kraków, Poland aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 939-943 1557-1939 24:1-2<939 2011 24 10948 https://doi.org/10.1007/s10948-010-0888-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-0888-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wójcik P. Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059, Kraków, Poland aut NATIONALLICENCE 700 1- Naylor A. School of Physics and Astronomy, University of Leeds, LS2 9JT, Leeds, UK aut NATIONALLICENCE 700 1- Wołoszyn M. Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059, Kraków, Poland aut NATIONALLICENCE 700 1- Hickey B. School of Physics and Astronomy, University of Leeds, LS2 9JT, Leeds, UK aut NATIONALLICENCE 700 1- Spisak B. Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059, Kraków, Poland aut NATIONALLICENCE 700 1- Adamowski J. Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059, Kraków, Poland aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 939-943 1557-1939 24:1-2<939 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer