The experimentally studied surface morphology of films of the Heusler alloy Fe2CoAl is compared to the theory of the formation of the fractal surface of films. This theory is based on the Cauchy problem for the simpli...
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The experimentally studied surface morphology of films of the Heusler alloy Fe2CoAl is compared to the theory of the formation of the fractal surface of films. This theory is based on the Cauchy problem for the simplified Kardar-Parisi-Zhang equation. It is shown that for the initial fractal shape of the film it can be solved immediately by applying the Oleinik-Lax principle (a weak solution to the problem). Within the framework of the exhaustive search method, numerical implementation of the Oleinik-Lax principle is proposed. A vector criterion of the quality of surface growth of the studied film is introduced. As the components of this criterion, the following functionals are tested: the norm of the spectral density of the autocorrelation function of the film surface in Hilbert space, Shannon information, and fractal dimension of the film surface. All these functionals are calculated over the shape of the film surface at each moment of time. A procedure for obtaining samples of the Fe2CoAl Heusler alloy is described.
In this paper. a modified FDTD algorithm is applied to analyze various anisotropic planar circuits in multilayer configuration via a new formulation of updated equations. This formulation takes into account the bianis...
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ISBN:
(纸本)9781728140643
In this paper. a modified FDTD algorithm is applied to analyze various anisotropic planar circuits in multilayer configuration via a new formulation of updated equations. This formulation takes into account the bianisotropic character of the substrate. For the first time, the effect of anisotropy on the cutoff frequency and bandwidth of rectangular waveguide is investigated as well as shielding effect on S parameters. Moreover, a new mesh function is proposed to reduce the CPU time. The computed results were compared to available data in literature and simulated results and a good agreement was observed.
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