Magnetic domain-wall motion by propagating spin waves

Dong-Soo Han; Sang-Koog Kim; Jun-Young Lee; Hermsdoerfer, Sebastian J.; Schultheiss, Helmut; Leven, Britta; Hillebrands, Burkard
March 2009
Applied Physics Letters;3/16/2009, Vol. 94 Issue 11, p112502
Academic Journal
We found by micromagnetic simulations that the motion of a transverse wall (TW)–type domain wall in magnetic thin-film nanostripes can be manipulated via interaction with spin waves (SWs) propagating through the TW. The velocity of the TW motion can be controlled by changes of the frequency and amplitude of the propagating SWs. Moreover, the TW motion is efficiently driven by specific SW frequencies that coincide with the resonant frequencies of the local modes existing inside the TW structure. The use of propagating SWs, whose frequencies are tuned to those of the intrinsic TW modes, is an alternative approach for controlling TW motion in nanostripes.


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