Magnetic field driven domain-wall propagation in magnetic nanowires
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Publication:833513
DOI10.1016/J.AOP.2009.05.004zbMATH Open1171.82352arXiv0809.4311OpenAlexW3106094619MaRDI QIDQ833513
Author name not available (Why is that?)
Publication date: 14 August 2009
Published in: (Search for Journal in Brave)
Abstract: A global picture of magnetic domain wall (DW) propagation in a nanowire driven by a magnetic field is obtained: A static DW cannot exist in a homogeneous magnetic nanowire when an external magnetic field is applied. Thus, a DW must vary with time under a static magnetic field. A moving DW must dissipate energy due to the Gilbert damping. As a result, the wire has to release its Zeeman energy through the DW propagation along the field direction. The DW propagation speed is proportional to the energy dissipation rate that is determined by the DW structure. An oscillatory DW motion, either the precession around the wire axis or the breath of DW width, should lead to the speed oscillation.
Full work available at URL: https://arxiv.org/abs/0809.4311
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