On the feasibility to study inverse proximity effect in a single S/F bilayer by Polarized Neutron Reflectometry

Khaydukov, Y. N. and Nagy, Béla and Kim, J. -H. and Keller, T. and Rühm, A. and Nikitenko, Y. V. and Zhernenkov, K. N. and Stahn, J. and Kiss, László Ferenc and Csík, Attila and Bottyán, László and Aksenov, V. L. (2013) On the feasibility to study inverse proximity effect in a single S/F bilayer by Polarized Neutron Reflectometry. JETP LETTERS, 98 (2). pp. 107-110. ISSN 0021-3640

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Abstract

Here we report on a feasibility study aiming to explore the potential of Polarized Neutron Reflectometry (PNR) for detecting the inverse proximity effect in a single superconducting/ferromagnetic bilayer. Experiments, conducted on the V(40nm)/Fe(1nm) S/F bilayer, have shown that experimental spin asymmetry measured at T = 0.5TC is shifted towards higher Q values compared to the curve measured at T = 1.5TC. Such a shift can be described by the appearance in superconducting vanadium of magnetic sublayer with thickness of 7 nm and magnetization of +0.8 kG.

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