Freestanding Oxide Membranes: Tuning Spin Pumping and Spin Hall Magnetoresistance

The recent development of freestanding oxide membranes offers a versatile solution for transferring materials onto various surfaces and in any orientation. We have recently demonstrated a new method to create well-defined shapes using shadow masks, which can then be transferred onto any surface with freestanding oxide membranes. In this work, we apply this methodology to detect spin currents generated by radio-frequency spin pumping from yttrium iron garnet (YIG), utilizing the inverse spin-Hall effect in materials with strong spin-orbit coupling. By transferring these well-defined devices at an angle relative to the magnetization axis, we are able to investigate the effect of device orientation on spin transport properties.