Demagnetization factors for elliptic cylinders
By M. Beleggia, M. Graef, Y. Millev, D. Goode, G. Rowlands. 2005
145 citations recorded by the source corpus.
The magnetometric (volume averaged) demagnetization factors for cylinders with elliptical cross section are computed using a Fourier-space approach and compared with similar results obtained with a different treatment. The demagnetization factors are given as a series expansion in the eccentricity ϵ of the elliptical cross section, where the terms up to order ϵ10 are given explicitly as a function of the cylinder aspect ratio. Other simplified expressions, valid in restricted regimes, are also given. Two different series expansions, obtained previously and valid in particular combinations of shape parameters, are recalled and compared with the new results. After the computation of the magnetostatic and exchange-energy terms associated with a vortex closure-domain state in the elliptic cylinder, the single-domain limit, or the critical size below which the structure can support quasi-uniform magnetization, is derived and discussed.
Subfields: Electronic, Optical and Magnetic Materials, Mechanical Engineering, Mechanics of Materials
View Paper: https://www.semanticscholar.org/paper/df4f9d06b0b0723c168f8d1e6be95015cf8a31b1
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In Electronic, Optical and Magnetic Materials
In Mechanical Engineering
In Mechanics of Materials
Citations in the corpus
- Electric-Field-Controlled Magnetoelectric RAM: Progress, Challenges, and Scaling (2015, methodology): “(calculated using the elliptical/circular cylinder approximation described in [49]).”
- Perpendicular magnetic anisotropy at transition metal/oxide interfaces and applications (2017, background): “(28) should be replaced by −μ0ðM2s=2ÞðNz − NxÞ (Beleggia et al., 2005).”