scholarly journals Interaction of an electromagnetic E-wave with a thin conducting film between two dielectric media in the case of an anisotropic isoenergetic surface and impurity scattering

2021 ◽  
Vol 2103 (1) ◽  
pp. 012156
Author(s):  
I A Kuznetsova ◽  
D N Romanov ◽  
A A Yushkanov
Keyword(s):  
Impurity Scattering ◽  
Charge Carriers ◽  
Surface Scattering ◽  
Conducting Film ◽  
Dielectric Media ◽  
Thin Conducting ◽  
Transmission And Absorption ◽  
Thin Conducting Film ◽  
The Magnetic Field ◽  
Isoenergetic Surface

Abstract The coefficients of reflection, transmission and absorption are calculated in the framework of the kinetic approach, when an electromagnetic E-wave interacts with a thin conducting film located between two dielectric media. To account for the surface scattering of charge carriers is used a model of mirror-diffuse boundary conditions, assuming that the specularity coefficients of the upper and lower surfaces of the film differ from each other. The electromagnetic wave falls on the upper surface of the film at an arbitrary angle. The case of an anisotropic isoenergetic surface of a conductor having the form of a three-axis ellipsoid, one of the main axes of which is parallel to the magnetic field strength of the wave, and the other is perpendicular to the film surfaces, is considered. The impurity scattering of electrons (holes) is dominated in the volume of the conductor. The dependence of the absorption coefficient on the parameters of the isoenergetic surface of the conductor is analyzed.

Resonance frequency shift in a cavity with a thin conducting film near a conducting wall

2007 ◽  
Vol 363 (1-2) ◽  
pp. 33-37 ◽  
Author(s):  
C. Braggio ◽  
G. Bressi ◽  
G. Carugno ◽  
A.V. Dodonov ◽  
V.V. Dodonov ◽  
...  
Keyword(s):  
Resonance Frequency ◽  
Frequency Shift ◽  
Conducting Film ◽  
Conducting Wall ◽  
Thin Conducting ◽  
Resonance Frequency Shift ◽  
Thin Conducting Film

The effect of nonlocal conductivity on the transmission of microwave radiation through ferromagnetic metals in the field-normal configuration

1986 ◽  
Vol 64 (7) ◽  
pp. 796-821 ◽  
Author(s):  
K. B. Urquhart ◽  
J. F. Cochran
Keyword(s):  
Magnetic Field ◽  
Electric Field ◽  
Microwave Radiation ◽  
Mean Free Path ◽  
Skin Depth ◽  
Charge Carriers ◽  
Surface Scattering ◽  
Field Distributions ◽  
Wide Range ◽  
Diffuse Surface

Procedures are described for the numerical calculation of the electric-field distributions generated in a model ferromagnetic metal slab of thickness d by incident microwave radiation when a static magnetic field is directed along the slab normal and the mean free path ℓ of the charge carriers becomes comparable to, or greater than, the skin depth δ. The model metal is characterized by a local, frequency-dependent permeability; a spherical Fermi surface; and a nonlocal relationship between the current density and the electric-field distribution. The two limiting cases of specular and diffuse scattering of the charge carriers at the slab faces are considered. Electric-field distributions, transmission amplitudes, and surface impedances have been calculated for a wide range of ℓ and d using parameters that simulate nickel. For diffuse surface scattering, the transmission of the magnetically active mode increases at both ferromagnetic resonance (FMR) and cyclotron resonance (CR). A most striking result is the total absence of structure in the magnetic-field dependence of the transmission amplitude near fields corresponding to FMR or to CR for the case of specular scattering. It is demonstrated that very simple formulae provide a good estimate of the free-space transmission amplitudes for both specular and diffuse surface scattering when [Formula: see text] and d/ℓ ≥ 1.

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