Field dependent permittivity of composite materials containing ferromagnetic wires
نویسندگان
چکیده
منابع مشابه
Homogenization of Composite Ferromagnetic Materials
The objective of this paper is to perform, by means of Γ -convergence and two-scale convergence, a rigorous derivation of the homogenized GIBBS-LANDAU free energy functional associated to a composite periodic ferromagneticmaterial, i.e. a ferromagneticmaterial in which the heterogeneities are periodically distributed inside the media. We thus describe the Γ -limit of the GIBBS-LANDAU free energ...
متن کاملFerroelectric Field Dependent Permittivity Model
The Metal-Ferroelectric-Semiconductor FET (MFSFET) device is structurally similar to a regular MOSFET device except that the gate material is composed of a ferroelectric material (PZT) normally sandwiched between two layers of silicon dioxide. Ferro models the PZT material with a set of four material parameters; the saturation polarization Ps, the remanent polarization Pr, the coercive field Ec...
متن کاملModelling of metamaterials based on ferromagnetic wires
Ferromagnetic microwires are investigated as fundamental components to generate metamaterials with double negative parameters. Electric and magnetic responses are, respectively, based on the finite conductivity and ferromagnetic resonance of the wires that in turn depend on their chemical composition. Tuning properties of samples are investigated in terms of an applied magnetic field. The sampl...
متن کاملHomogenization of ferromagnetic materials
In these notes we describe the homogenzation theory for ferromagnetic materials. A new phenomenon arises, in particular to take into account the geometric constraint that the magnetization is locally saturated.
متن کاملEstimation of Distributed Parameters in Permittivity Models of Composite Dielectric Materials Using Reflectance
We investigate the feasibility of quantifying properties of a composite dielectric material through the reflectance, where the permittivity is described by the Lorentz model in which an unknown probability measure is placed on the model parameters. We summarize the computational and theoretical framework (the Prohorov Metric Framework) developed by our group in the past two decades for nonparam...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2003
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.1557780