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http://dx.doi.org/10.4283/JMAG.2008.13.4.136

Numerical Formula of Depinning Fields from Notches in Ferromagnetic Permalloy Nanowire  

Kim, Kab-Jin (Center for Subwavelength Optics and School of Physics, Seoul National University)
You, Chun-Yeol (Department of Physics, Inha University)
Choe, Sug-Bong (Center for Subwavelength Optics and School of Physics, Seoul National University)
Publication Information
Journal of Magnetics / v.13, no.4, 2008 , pp. 136-139 More about this Journal
Abstract
A simplified equation of depinning fields from notches of ferromagnetic Permalloy nanowires is presented. The derived equation is given in the form of an explicit function of nanowire width and thickness, and notch depth and angle. The equation agrees with all micromagnetic simulation results to an accuracy of ${\pm}$ 0.5 mT.
Keywords
ferromagnetic nanowire; domain wall; notch; pinning;
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