Room-temperature ferromagnetic materials with perpendicular magnetic anisotropy are widely sought after for spintronics, magnetic data storage devices, and stochastic computing. To address this need, a new Fe-BaTiO₃ vertically aligned nanocomposite (VAN) has been fabricated—combining both the strong room-temperature ferromagnetic properties of Fe nanopillars and the strong room-temperature ferroelectric properties of the BaTiO₃ matrix. Furthermore, the Fe-BaTiO₃ VAN allows for highly anisotropic magnetic properties with tunable magnetization and coercivity. In addition, to demonstrate the multiferroic properties of the Fe-BaTiO₃ system, the new metal-oxide hybrid material system has been incorporated in a multilayer stack. This new multiferroic VAN system possesses great potential in magnetic anisotropy and property tuning and demonstrates a new material family of oxide-metal hybrid systems for room-temperature multiferroic material designs.

具有自旋电子学，磁性数据存储设备和随机计算的具有垂直磁各向异性的室温铁磁材料得到了广泛的追捧。为了满足这一需求，已经制造出一种新型的Fe-BaTiO ₃垂直取向纳米复合材料（VAN），兼具Fe纳米柱的强室温铁磁性能和BaTiO ₃基体的强室温铁电性能。此外，Fe-BaTiO ₃ VAN具有可调节的磁化强度和矫顽力的高度各向异性的磁性。另外，证明Fe-BaTiO ₃的多铁性系统中，新的金属氧化物杂化材料系统已并入多层堆栈中。这种新型的多铁VAN系统在磁各向异性和特性调节方面具有巨大潜力，并展示了用于室温多铁材料设计的氧化物-金属混合系统的新材料系列。