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Magnetic phase shift reconstruction for uniformly magnetized nanowires
Azadeh Akhtari-Zavareh1, Marc De Graef2, Karen L Kavanagh1
1Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada.
Abstract:
A new analytical model is developed for the magnetic phase shift of uniformly magnetized nanowires with ideal cylindrical geometry. The model is applied to experimental data from off-axis electron holography measurements of the phase shift of CoFeB nanowires, and the saturation induction of a selected wire, as well as its radius, aspect ratio, position and orientation, is determined by fitting the model parameters. The saturation induction value of 1.7T of the CoFeB nanowire is found to be similar, to be within the measurement error, to values reported in the literature.
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