Non-Local Transport Mediated by Spin-Supercurrents
  In thin film ferromagnets with perfect easy-plane anisotropy, the component of total spin perpendicular to the easy plane is a good quantum number and the corresponding spin supercurrent can flow without dissipation. In this Letter we explain how spin supercurrents couple spatially remote spin-mixing vertical transport channels, even when easy-plane anisotropy is imperfect, and discuss the possibility that this effect can be used to fabricate new types of electronic devices. 
Hua Chen, Andrew D. Kent, Allan H. MacDonald, and Inti Sodemann
cond-mat.mes-hall