[15p-PB1-1~57] 10 Spintronics and Magnetics (Poster)

[15p-PB1-54] Superconducting proximity effect in epitaxial bilayer films of superconductor NbN/half-metal Heusler alloy Co₂MnSi

〇Iduru Shigeta¹, Takahide Kubota², Shojiro Kimura³, Bunju Shinozaki⁴, Takeshi Seki³, Satoshi Awaji³, Masahiko Hiroi¹ (1.Kagoshima Univ., 2.Tohoku Univ., 3.IMR, Tohoku Univ., 4.Kyushu Univ.)

Keywords:

half metal,superconductor,proximity effect

Research on the superconducting proximity effect in superconductor (S)/ferromagnet (F) structures has been conducted with the aim of applying it to spintronic devices. A characteristic phenomenon of the superconducting proximity effect is that the superconducting critical temperature T_c in S/F bilayers exhibits a non-monotonic dependence on the thickness d_F of the F layer. In this study, we investigated the d_F dependence of T_c in NbN/CMS bilayer films to clarify the superconducting proximity effect in multilayers composed of the superconductor NbN and the half-metallic Heusler alloy Co₂MnSi (CMS).