Title :
Magnonic Spin-Transfer Torque and Domain Wall Propagation
Author :
Wang, X.R. ; Yan, P. ; Wang, X.S.
Author_Institution :
Phys. Dept., Hong Kong Univ. of Sci. & Technol., Kowloon, China
Abstract :
Magnonic spin-transfer torque (STT) is introduced. In comparison with electronic STT, magnonic STT is more efficient in driving domain wall (DW) propagation along a magnetic nanowire because of the total spin wave transmission through a DW. Furthermore, the energy consumption is more than millions times lower than that by electronic STT when the magnonic STT is used to drive a DW to propagate at a practically useful speed.
Keywords :
magnetic domain walls; magnons; nanowires; domain wall propagation; electronic STT; energy consumption; magnetic nanowire; magnonic STT; magnonic spin transfer torque; total spin wave transmission; Damping; Magnetic domain walls; Magnetic domains; Magnetomechanical effects; Perpendicular magnetic anisotropy; Wires; Domain wall; magnonic spin transfer torque; phase shift; reflectionless; spin wave;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2012.2198197
