Spinmotive force due to motion of magnetic bubble arrays driven by magnetic field gradient

Ieda, Junichi   ; Yamane, Yuta*; Hemmatiyan, S.*; Sinova, J.*; Maekawa, Sadamichi

We show that electric voltage generation (spinmotive force) from magnetic bubble arrays subject to a magnetic field gradient. The formula for the induced voltage is derived and whereby a new method is proposed for determining the magnitude of the phenomenological parameter that measures non-adiabaticity of current-induced magnetization dynamics. This spinmotive force opens up a door for developing a new type of spintronics devices relying on the magnetic field gradient.