講演情報
[15p-PB1-55]Temperature Dependence of Superconducting Diode Effect
in Pt/Fe/Pt-inserted Nb/V/Ta Superlattices
〇所 風伍1、平田 勧1、飯島 諒1、松木 久和1、久富 隆佑1,2、輕部 修太郎1,2、塩田 陽一1,2、小野 輝男1,2 (1.京大化研、2.京大CSRN)
キーワード：
superconductor、superconducting diode effect、asymmetric artificial superlattices
There has been growing interest in the superconducting diode effect (SDE), which was observed in noncentrosymmetric superconductors. Recently, a zero-field superconducting diode effect has been reported in superconductor/ferromagnet hybrid structures. In this study, we investigate the temperature dependence of the superconducting properties of a Nb/V/Pt/Fe/Pt/V/Ta superlattice, in which strong spin-orbit coupling from Pt and ferromagnetism from Fe are incorporated into a noncentrosymmetric Nb/V/Ta superlattice. Jc increase below the superconducting transition temperature (3.6 K) and exhibiting an inflection point near 3.0 K.Δ Jc does not increase immediately below the superconducting transition temperature instead emerges below 3.0 K, coinciding with the inflection point observed in Jc.