[23p-B201-1~12] 10.4 Spintronics in semiconductor, topological material, superconductor, and multiferroics

[23p-B201-1] [Young Scientist Presentation Award Speech] Non-reciprocal critical current in ferromagnetically doped superconducting multilayers

〇Hideki Narita¹, Jun Ishizuka², Ryo Kawarazaki¹, Daisuke Kan^1,3, Yoichi Shiota^1,3, Takahiro Moriyama^1,3, Yuichi Shimakawa^1,3, A. V. Ognev⁴, A. S. Samardak⁴, Youichi Yanase^5,6, Teruo Ono^1,3,4,7 (1.ICR, Kyoto Univ., 2.ETH Zurich, 3.CSRN, ICR, Kyoto Univ., 4.Far Eastern Federal Univ., 5.Dept. of Phys. Kyoto Univ., 6.IMS, 7.CSRN, Osaka Univ.)

Keywords:superconductor, non-reciprocal, multilayer

In recent years, various phenomena occurring in noncentrosymmetric superconductors have attracted much attention. Asymmetric stacking structure is one of the most accessible ways to break the space-inversion symmetry. Recent studies have demonstrated the superconducting diode effect in polar ferromagnetic superconducting multilayers without a magnetic field. In this talk, I will present various properties of Co-inserted polar Nb/V/Ta multilayers and our efforts to control the non-reciprocal critical current using the stacking structure.