The single power law relationship between coercivity and width in pointed composite element magnetic barcodes
P. J. Newton,
S. M. Masur,
N. B. Devlin
et al.
Abstract:Pointed magnetic elements are introduced as an improvement upon rectangular strips currently employed in composite element magnetic barcodes. The coercivity of these elements, as measured using the magneto-optic Kerr effect, is found to strictly adhere to a single power law relationship with the element width, where the power law exponent is dependent on the length of the pointed region and takes values between −0.98 and −0.91. The steeper gradients here, along with the absence of the crossover region seen in … Show more
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