Nonlocal optical generation of spin and charge currents on the surface   of magnetic insulators using total absorption and surface plasmons
  We study the nonlocal spin and charge current generation in a finite metallic element on the surface of magnetic insulators such as \tcb{yttrium iron garnet} due to the absorption of the magnetic surface plasmon (MSP). Whereas a surface plasmon is completely reflected by a metal, \tcb{an} MSP \tcb{can be} absorbed \tcb{due to the absence of backward states}. The \tcb{injection of} MSP generates a voltage in the longitudinal direction parallel to the wave vector, \tcb{with the voltage} proportional to input power. If the metal is a ferromagnet, a spin current can also be \tcb{induced} in the longitudinal direction. Our \tcb{results provide a way to improve upon} integrated circuits of spintronics and spin wave logic devices. 
S. T. Chui, Z. F. Lin, C. R. Chang, John Xiao
cond-mat.mes-hall cond-mat.other