Abstract
Spin torque induced by orbital current has become of great interest, as it allows the use of lighter elements in the development of advanced spin-orbitronic devices. Meanwhile, the inverse orbital torque (IOT) effect, in which an orbital current creates a charge current, has been difficult to detect. This study uses pumped spin-orbital current in Y${}_{3}$Fe${}_{5}$O${}_{12}$/Pt/CuO${}_{x}$ heterostructures to investigate the IOT effect. Mixed spin-orbital states propagate to the Pt/CuO${}_{x}$ interface and create a much stronger transverse charge current than that created without the CuO${}_{x}$ coating. This inverse orbital Rashba-Edelstein effect can be used to advance applications in spintronics.
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