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Dynamic propagation and nucleation in domain wall nanowire devices
Journal of Physics: Condensed Matter, 2011The dynamic injection and propagation of domain walls (DWs) in technologically relevant geometries have been investigated. On short (~10 ns) timescales nucleation of a DW by a localized Oersted field is found to be well described using a Néel-Brown reversal mode.
L, O'Brien +3 more
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Magnetoelastic Contribution in Domain Wall Propagation of Micrometric Wires
Journal of Nanoscience and Nanotechnology, 2012We report on studies of domain wall propagation of magnetically-bistable Fe-Co-rich microwires paying attention on the effect of applied and internal stresses. We measured magnetic domain propagation in various magnetic Fe-Co-rich amorphous microwires with metallic nucleus diameters (from 2.8 microm to 18 microm) using Sixtus Tonks-like experiments. We
A, Zhukov +3 more
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Spin-wave propagation in domain wall magnonic crystal
EPL (Europhysics Letters), 2015We present a new type of magnonic crystal consisting of a series of periodically distributed magnetic domain walls in a uniform strip. When spin waves propagate in such a structure, allowed and forbidden bands are formed due to translation symmetry and scattering of the spin waves at the domain wall boundaries caused by the dynamic stray field in the ...
Xi-guang Wang +5 more
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Domain wall propagation in Fe-rich amorphous microwires
Physica B: Condensed Matter, 2012Abstract The domain wall (DW) propagation in magnetically bistable Fe 74 Si 11 B 13 C 2 amorphous microwires with metallic nucleus diameters of 12–16 μm has been investigated in order to explain high DW velocities observed in Sixtus–Tonks like experiments. In micrometric wires, the boundary between two head-to-head domains is very elongated.
L.V. Panina +3 more
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Domain wall phenomena in bubble propagation layers
Journal of Magnetism and Magnetic Materials, 1983Abstract The role of domain walls in bubble propagation layers is reviewed. Conventional permalloy overlay structures of typically 0.4–0.5 μm thickness show stray field free domain wall structures. These walls are very wide and mobile. It is concluded that wall pinning and irreversibilities are primarily connected with Bloch lines and other ...
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Domain Wall Propagation in Nanocrystalline Glass-Coated Microwires
IEEE Transactions on Magnetics, 2009The characteristics of domain wall propagation in Fe73.5Cu1Nb3Si13.5B9 amorphous and nanocrystalline glass-coated microwires are investigated in order to determine the changes induced by structural transformation in wall velocity and mobility. An improved method for sensing the wall presence and direction, and for measuring its velocity, is also ...
H. Chiriac, M. Tibu, T.-A. Ovari
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Magnonic Spin-Transfer Torque and Domain Wall Propagation
IEEE Transactions on Magnetics, 2012Magnonic 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 ...
Wang, Xiangrong, Yan, Peng, Wang, Xiansi
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Micromagnetic simulation of current-driven domain wall propagation
Journal of Computational Electronics, 2007We develop a method to model the interaction of currents and domain walls in a standard micromagnetic simulator. The interaction of spin-polarized currents and localized magnetic moments can be described by a current-induced effective field, which superposes to other components of the effective magnetic field.
G. Csaba, P. Lugli, L. Ji, W. Porod
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Experimental detection of domain wall propagation above the Walker field
Journal of Physics: Condensed Matter, 2011The domain wall (DW) velocity above the Walker field drops abruptly with increasing magnetic field, because of the so-called Walker breakdown, where the DW moves with a precessional mode. On applying the higher field, the DW velocity again starts to increase gradually.
Kouta, Kondou +5 more
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Dynamics of field-driven domain-wall propagation in ferromagnetic nanowires
Nature Materials, 2005Ferromagnetic nanowires are likely to play an important role in future spintronic devices. Magnetic domain walls, which separate regions of opposing magnetization in a nanowire, can be manipulated and used to encode information for storage or to perform logic operations.
Geoffrey S D, Beach +4 more
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