Jamieson, Brice; O’Donnell, Terence; Kulkarni, Santosh; Roy, Saibal

2010

January

Applied Physics Letters

Shape-independent permeability model for uniaxially-anisotropic ferromagnetic thin films

Validated

WOS: 13 ()

Ferromagnetic materials Magnetic anisotropy Magnetic permeability Magnetisation Inductors

96

202509-1

202509-3

A permeability model based on the three-dimensional shape demagnetization effect is developed to estimate the permeability of any uniaxially-anisotropic ferromagnetic thin-film for integrated micromagnetic structures. The model is validated by comparison to measured ferromagnetic thin films (NiFe and CoPRe) with different anisotropies and saturation magnetizations. The dependence of permeability on film-thickness is modeled as a function of the demagnetization effect and verified against fabricated samples of varying thicknesses.

0003-6951

10.1063/1.3430061