标题： 具有超低开关电流的柔性轨道扭矩装置 显示英文标题

标题： Flexible orbital torque device with ultralow switching current

摘要： 轨道扭矩（OT）为电气磁化操控提供了一种高效的方法。 然而，在柔性自旋电子学这一新兴领域中，其潜力仍大多未被探索。 在此，我们展示了一种基于云母/SrRuO3（SRO）/CoPt异质结构的柔性且耐用的OT器件。 我们测得一个大的扭矩效率为-0.31，这源于SRO层中的显著轨道霍尔效应。 利用云母衬底的低热导率，激活了热辅助切换机制，使超低阈值电流密度达到9.2x109 A/m2。 该数值相比传统自旋扭矩器件减少了90%，相比在SrTiO3衬底上的刚性器件减少了52%。 经过103次弯曲循环后，性能保持良好，证明了其卓越的柔韧性和耐用性。 我们的工作开创了柔性OT器件的发展，展示了通向下一代低功耗可穿戴自旋电子应用的可行路径。 显示英文摘要

摘要： Orbital torque (OT) offers a highly efficient way for electrical magnetization manipulation. However, its potential in the emerging field of flexible spintronics remains largely unexplored. Here, we demonstrate a flexible and robust OT device based on a mica/SrRuO3(SRO)/CoPt heterostructure. We measure a large torque efficiency of -0.31, which originates from the significant orbital Hall effect in the SRO layer. Leveraging the low thermal conductivity of the mica substrate, a thermally-assisted switching mechanism is activated, enabling an ultralow threshold current density of 9.2x109 A/m2. This value represents a 90% reduction compared to conventional spin-torque devices and a 52% reduction against its rigid counterpart on a SrTiO3 substrate. The superior performances is well-maintained after 103 bending cycles, conforming its exceptional flexibility and durability. Our work pioneers the development of flexible OT devices, showcasing a viable path toward next-generation, low-power wearable spintronic applications.