Cobalt oxide-based magnetic oxide film and preparation method and application thereof

The invention provides a cobalt oxide-based magnetic oxide film and a preparation method and application thereof, the magnetic oxide film is composed of a superlattice structure formed by alternately growing a first material layer and a second material layer, the first material layer is LaCoO3, and the second material layer is SrCuO2. The preparation method comprises the step of alternately depositing on the single crystal substrate by using a pulse laser deposition technology to form the superlattice structure consisting of the LaCoO3 layers and the SrCuO2 layers. The method is easy to operate, high in repeatability and not affected by the external environment. And [(LaCoO3) m/(SrCuO2) n] p superlattice structures with different compositions can be prepared according to the requirements of devices. According to the invention, an alternative material is provided for an ultra-thin spin-orbit torque device for optical pumping and current driving. 本发明提供一种钴氧化物基磁性氧化物薄膜及其制备方法和应用，该磁性氧化物薄膜由第一材料层和第二材料层交替生长而成的超晶格结构组成，其