Voltage controlled propagating spin waves on a perpendicularly   magnetized nanowire
  We numerically and analytically investigate the voltage controlled spin wave (SW) propagations in a nanowire with locally manipulated perpendicular magnetic anisotropy (PMA) by applying an electric field. It is shown that the velocity and wavelength of the propagating SWs are tailored by the modified PMA, which can be locally controlled by the external electric field. First, we observe a phase shift when the propagating SWs pass through the area of locally modified PMA. By introducing phase control of the SWs, we finally propose a three terminal SW device. Constructive/destructive interferences of two propagating SWs are controlled at the detecting area by the voltage controlled phase shift. 
June-Seo Kim, Sanghoon Jung, Myung-Hwa Jung, Chun-Yeol You, Henk J. M.   Swagten, Bert Koopmans
cond-mat.mes-hall