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The dc voltage obtained from the inverse spin Hall effect (iSHE) due to spin pumping in ferromagnet/normal-metal (NM) bilayers can be unintentionally superimposed with magnetoresistive rectification of ac charge currents in the ferromagnetic layer. We introduce a meander-stripline device in which these spurious rectification voltages vanish while the iSHE voltage is maximized. In this device, a quantitative study of the dc iSHE is performed in a broad frequency range for Ni<sub>80</sub>Fe<sub>20</sub>/NM multilayers with NM = {Pt, Ta, Cu/Au, Cu/Pt}. The experimentally recorded voltages can be fully ascribed to the iSHE due to spin pumping. Furthermore, we measure a small iSHE voltage in single CoFe thin films.

Detection of the DC Inverse Spin Hall Effect Due to Spin Pumping in a Novel Meander-Stripline Geometry