Metamaterials and superresolution: From homogenization to rigorous approach

High-frequency behavior of magnetic composites

“…The microwave intrinsic permeability is also subjected to the effect of eddy currents. For these reasons, the permeability of powders of nearly the same composition may distinguish greatly for many materials, as is evidenced by the dependence of small doping on the microwave properties of ferrites [18], the study of microwave properties of composites comprising microsized and nanosized powder of Fe 2 O 3 [62], and the study of thin Fe-N films deposited under different conditions [93]. Therefore, the intrinsic permeability of inclusions should not be taken for granted.…”

Microwave and static magnetic properties of multi-layered iron-based films

“…Iron films of 0.03-2 mm in thickness are deposited by the magnetron sputtering technique onto a 10-mm-thick flexible mylar substrate [7,8]. The film thickness is measured by the optical interference technique.…”

“…The deposition is made at room temperature in Ar+N 2 atmosphere at pressure 10 À4 Torr, with the content of N 2 up to 10%. According to the results of Mossbauer spectroscopy and XRD, the resulting content of nitrogen in the films under study is typically below 1 atomic percent [8].…”

The magnetization model of multilayered composite thin films: Beyond the effective-medium theories

“…Films under study are deposited by the magnetron sputtering onto a D 0 ¼ 10 mm thick flexible mylar substrate [9,10]. The preparation technique of the samples is described in detail in Ref.…”