磁敏电子皮肤是电子皮肤的重要一类，其核心功能是感知磁场，提升和拓展人类或机器人的感知能力，在人机交互领域有重要应用前景，其核心问题是磁性薄膜的柔性/弹性化。磁性材料一般为刚性材料，不能变形，只能依赖褶皱等结构实现特定方向的大的变形。液态金属Ga-In-Sn合金具有高电导率、室温下为液态，是发展可任意变形的磁性薄膜的有力候选者。然而，现有方法很难构建纳米尺度复合的液态金属基磁性薄膜，进而限制了磁、自旋相关物理效应的研究，使得发展液态金属基磁敏电子皮肤成为一个挑战。本项目拟利用物理气相沉积方法将液态金属与磁性材料在纳米尺度复合，研究具有不同界面结构的弹性衬底上，电场、磁场等外场作用下，磁性复合薄膜的生长规律；研究电子在液态-固态界面的电输运特性，尤其是磁相关电输运特性；研究应力/应变作用下，磁、电输运特性的演化规律；获得可任意变形的磁敏传感器原型器件，为发展新型磁敏电子皮肤提供理论和材料基础。

Magnetic electronic-skin is an important kind of electronic skin, which is sensitive to magnetic field and can enhance or expand the perception ability of human or robot. It has important application prospects in the field of human-computer interaction. Making the magnetic film to be flexible and elastic is the key issue of developing magnetic electronic-skin. Generally speaking, magnetic materials are rigid, which can not deform, but can only rely on wrinkled and other structures to achieve large deformations in specific directions. The liquid metal Ga-In-Sn alloy has high conductivity and is liquid state at room temperature, which is a good candidate for developing arbitrarily deformable magnetic films. However, it is difficult to construct nano-scale composite of liquid metal-based magnetic films by existing methods, which limits the study of magnetic and spin-related physical effects, making the development of liquid metal-based magnetic electronic-skin to be a challenge. This project intends to use physical-vapor deposition method to fabricate liquid metals and magnetic materials at nano-scale. First, we will study the growth of magnetic composite films on elastic substrates with different interface structures under the action of electric and magnetic fields. Second, we will study the electrical transport characteristics of electrons at the liquid-solid interface, especially the magnetic-related transport characteristics. Third, we will study the magnetic and electrical transport properties under the action of stress/strain fields. The prototype device of magnetic sensor with arbitrary deformation will be obtained, which provides theoretical and material basis for the development of new magnetic electronic-skin.