منابع مشابه
Currents induced by domain wall motion in thin ferromagnetic wires
Historically the role of eddy currents in the motion of Bloch walls has been extensively studied. In contrast the direct interaction of currents with such a moving wall has received very little attention. However recently it has been shown that a wall can be displaced by the effects of a current alone, a fact which is important to the development of spintronics. We report here that such a movin...
متن کاملUniversal electromotive force induced by domain wall motion.
The electromotive force induced by a moving magnetic domain wall in a nanostrip has been calculated theoretically and detected experimentally. It is found that the emf depends only on the domain wall transformation frequency through a universal Josephson type relation, which is closely related to the topological nature of the domain wall. Our experimental measurements confirm the theoretical pr...
متن کاملCurrent-induced domain wall motion in nanoscale ferromagnetic elements
We review the details of domain wall (DW) propagation due to spin-polarized currents that could potentially be used in magnetic data storage devices based on domains and DWs. We discuss briefly the basics of the underlying spin torque effect and show how the two torques arising from the interaction between the spin-polarized charge carriers and the magnetization lead to complex dynamics of a sp...
متن کاملDetection of EMF induced by domain wall motion
Submitted for the MAR09 Meeting of The American Physical Society Detection of EMF induced by domain wall motion GEOFFREY BEACH, MIT, Dept. of Materials Science and Engineering, SHENGYUAN YANG, CARL KNUTSON, DI XIAO, QIAN NIU, MAXIM TSOI, JAMES ERSKINE, UT Austin Dept of Physics — It is now well established that an electric current can drive magnetic domain wall (DW) motion via coupling between ...
متن کاملDirect observation of high velocity current induced domain wall motion
We study fast vortex wall propagation in Permalloy wires induced by 3 ns short current pulses with sub 100 ps rise time using high resolution magnetic imaging at zero field. We find a constant domain wall displacement after each current pulse as well as current induced domain wall structure changes, even at these very short timescales. The domain wall velocities are found to be above 100 m/s an...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2011
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.83.054403