Effect of Notch Structure on Magnetic Domain Movement in Planar Nanowires

2017/11/23 by Hua Ling, Ling, Hua, Junlin Wang +19
Engineering · Materials Science · Physics and Astronomy · #Anodic Oxide Films and Nanostructures #FOS: Physical sciences #Magnetic properties of thin films #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Nanowire Synthesis and Applications

paper · pdf · doi:10.48550/arxiv.1711.08788

openalex publication_date 2017/11/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present the direct observation of magnetic domain motion in permalloy nanowires with notches using a wide-field Kerr microscopy technique. The domain wall motion can be modulated by the size and shape of the notch structure in the nanowires. It is demonstrated that the coercive fields can be tuned by modulating the notches. The experimental results are consistent with the micro-magnetic simulation results. The relationship between the notch angle and the domain nuclease are also studied. This work is useful for the design and development of the notch-based spintronic devices.

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