To extend density limits in magnetic recording industry, two separate strategies were developed to build the storage bit in last decade, introduction of perpendicular magnetic anisotropy (PMA) and adoption of ferrimagnetism/antiferromagnetism. Meanwhile, these properties significantly improve device performance, such as reducing spin-transfer torque energy consumption and decreasing signal-amplitude-loss. However, materials combining PMA and antiferromagnetism rather than transition-metal/rare-earth system were rarely developed. Here, we develop a new type of ferrimagnetic superlattice exhibiting PMA based on abundant Heusler alloy families. The superlattice is formed by [MnGa/Co 2 FeAl] unit with their magnetizations antiparallel aligned. The effective anisotropy (K u eff) over 6 Merg/cm 3 is obtained, and the SL can be easily built on various substrates with flexible lattice constants. The coercive force, saturation magnetization and K u eff of SLs are highly controllable by varying the thickness of MnGa and Co 2 FeAl layers. The SLs will supply a new choice for magnetic recording and spintronics memory application such as magnetic random access memory.
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