The trend of mobile Internet requires portable and wearable devices as bio-device interfaces. Electric field control of magnetism is a promising approach to achieve compact, light-weight, and energy-efficient wearable devices. Within a flexible sandwich heterostructure, perpendicular magnetic anisotropy switching was achieved via low-voltage gating control of an ionic gel in mica/Ta/(Pt/Co)_x/Pt/ionic gel/Pt, where (Pt/Co)_x acted as a functional layer. By conducting in situ VSM, EPR, and MOKE measurements, a 1098 Oe magnetic anisotropy field change was determined at the bending state with tensile strain, corresponding to a magnetic anisotropy energy change of 3.16 × 10⁵ J/m³ and a giant voltage tunability coefficient of 0.79 × 10⁵ J/m³·V. The low voltage and strain dual control of magnetism on mica substrates enables tunable flexible spintronic devices with an increased degree of manipulation.

中文翻译：

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柔性自旋电子学的（Co / Pt）_x垂直磁各向异性异质结构的低压控制

移动互联网的趋势要求便携式和可穿戴设备作为生物设备接口。磁场的电场控制是一种实现紧凑，轻巧和节能的可穿戴设备的有前途的方法。在柔性三明治异质结构中，通过对云母/ Ta /（Pt / Co）_x / Pt /离子凝胶/ Pt中的离子凝胶进行低压选通控制，实现了垂直磁各向异性切换，其中（Pt / Co）_x充当功能层。通过进行原位VSM，EPR和MOKE测量，确定了在弯曲状态下具有拉伸应变的1098 Oe磁各向异性场变化，对应于3.16×10 ⁵ J / m ³的磁各向异性能变化巨大的电压可调系数为0.79×10 ⁵ J / m ³ ·V。云母基板上磁场的低电压和应变双重控制使得可调谐柔性自旋电子器件具有更高的操纵度。