Perpendicular exchange bias in ferrimagnetic spin valves
The exchange bias effect refers to the shift of the hysteresis loop of a ferromagnet in direct contact to an antiferromagnet. For applications in spintronics a robust and tunable exchange bias is required. Here we show experimental evidence for a perpendicular exchange bias in a prototypical ferrimagnetic spin valve consisting of DyCo5/Ta/Fe76Gd24, where the DyCo5 alloy has the role of a hard ferrimagnet and Fe76Gd24 is a soft ferrimagnet. Taking
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