Influence of geometry on domain wall propagation in a mesoscopic wire

作者: J. Wunderlich , D. Ravelosona , C. Chappert , F. Cayssol , V. Mathet

DOI: 10.1109/20.951067

关键词: PhysicsPosition (vector)Mesoscopic physicsHall effectWave propagationCondensed matter physicsDomain wall (magnetism)Magnetic domainMagnetic structureGeometrySpin-½

摘要: The propagation of a single magnetic Bloch domain wall (DW) in mesoscopic wire is studied by use the extraordinary Hall effect. Whereas straight DW propagates freely with constant lateral width, cross reveals that both shape and velocity vary strongly as function position. These results give first experimental evidence dynamical properties patterned structure are affected device geometry. This has to be taken into account for future applications spin electronic devices.

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