Spin Hydrodynamic Generation in Low-Melting-Point Pure Metal

Abstract

The phenomenon of spin hydrodynamic generation (SHDG) unites research in spintronics and fluid dynamics. Revealing the physical properties of SHDG is necessary to strengthen the connection between these two fields, and to expand the applicability of SHDG. Here the authors measure SHDG in liquid gallium, and find that SHDG shows negative dependence on the spin-orbit interaction and no remarkable dependence on the Newtonian viscosity. This study lays the groundwork for applications in microfluidics and manipulation of SHDG.