Figure 1

Rashba spin splitting and spin-to-charge conversion in NM/Bi2O3 interface. (a) Rashba spin splitting at NM/Bi2O3 interface. (b) An asymmetry distribution of \({|\psi |}^{2}\) generated by interfacial electric field Einter. Purple line and blue line respectively show the \({|\psi |}^{2}\) under smaller and larger field Einter. Green line show electrostatic potential V. (c) Experimental setup for the spin pumping measurement. (d) Schematic of spin-to-charge conversion at the NM/Bi2O3 interface. A spin current is pumped from the Py layer in resonance into the NM/Bi2O3 interface, and then converted to the charge current via the inverse Edelstein effect.