Tailoring laser-induced domain wall pinning
作者： P. Möhrke , J. Rhensius , J.-U. Thiele , L.J. Heyderman , M. Kläui
DOI: 10.1016/J.SSC.2009.11.040
关键词:
摘要: Abstract Field-induced domain wall (DW) motion in Permalloy microwires under the influence of thermal gradients is studied using magneto-optical Kerr-microscopy. The DW found to be pinned at two positions a laser spot focused onto wire. By tuning power, pinning strength can engineered. On increasing depinning field for first site half decrease, while second region located beyond centre it increases. Below threshold power W T , tuned reversibly above irreversible increases due structural changes occur. This effect employed flexible sites devices.
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