講演情報
[15p-P07-30]Emergent magneto-inductance effect in Au/NiFe thin films on flexible substrates at room temperature
〇(DC)Zijing Zhang1, Tsunagu Hatakeyama1, Mizuki Matsuzaka1, Riko Iimori1, Yu Matsushima1, Hideo Kaiju1,2 (1.Keio Univ., 2.CSRN, Keio Univ.)
キーワード：
Emergent inductance、Magnetic thin films、Spintronics
Emergent inductance, a quantum phenomenon in spintronics arising from the interaction between spin dynamics and charge transport in magnetic materials, has garnered significant attention due to its unique properties. Unlike classical inductance, the magnitude depends inversely on the cross-sectional area of devices, which inspires the advancements in the inductor miniaturization and flexible magnetic sensors for spintronic applications. In this study, we present an emergent magneto-inductance (EML) effect in Au/NiFe thin films on flexible ultra-smooth Polyimide (us-PI) substrates, demonstrating a large inductance variation under a small magnetic field. As a result, the magnitude of EML exhibits a clear increase with decreasing film width, which shows an inverse scaling property. The EML effect is attributed to the spin motive force which results from the transient domain-wall motion driven by an AC current under a stepwise external magnetic field.