Far-Infrared Dielectric Function of Zincblende ZnS
نویسندگان
چکیده
منابع مشابه
Far-Infrared Dielectric Function of Zincblende ZnS
The complex dielectric response function of zincblende ZnS is determined a t 300 K by dispersive Fourier transform spectroscopy. The frequency range studied, 150 to 450 cm-l, spans the frequency of the q = 0 transverse optic (TO) phonon mode. The frequency dependence of the anharmonic self-energy function T(Y) of the q = 0 TO phonon is calculated from these data. The features observed in the sp...
متن کاملFar-infrared characteristics of ZnS nanoparticles measured by terahertz time-domain spectroscopy.
The optical and dielectric properties of ZnS nanoparticles are studied by use of terahertz time-domain spectroscopy (THz-TDS) over the frequency range from 0.3 to 3.0 THz. The effective medium approach combined with the pseudo-harmonic model of the dielectric response, where nanoparticles are embedded in the host medium, provides a good fit on the experimental results. The extrapolation of the ...
متن کاملDielectric function of amorphous tantalum oxide from the far infrared to the deep ultraviolet spectral region measured by spectroscopic ellipsometry
Amorphous tantalum oxide thin films were deposited by reactive rf magnetron sputtering onto @001# silicon substrates. Growth temperature, oxygen partial pressure, and total gas pressure have been varied to obtain thin films with different densities. The thin films were analyzed by glancing angle-of-incidence x-ray diffraction, atomic force microscopy, and variable angle-of-incidence spectroscop...
متن کاملDielectric function of diluted magnetic semiconductors in the infrared regime
We present a study of the dielectric function of metallic (III,Mn)V diluted magnetic semiconductors in the infrared regime. Our theoretical approach is based on the kinetic exchange model for carrier induced (III,Mn)V ferromagnetism. The dielectric function is calculated within the random phase approximation and, within this metallic regime, we treat disorder effects perturbatively and thermal ...
متن کاملDielectric properties of polypyrrole doped with tosylate anion in the far infrared and microwave
We report measurements of the dielectric behavior in the far infrared ( 10-200 cm’ ) and in the microwave (8.5-12.5 GHz) regime for the conducting polypyrrole (PP) doped with tosylate anion. The dielectric constants have been determined from reflection and transmission data using the Fresnel equations. The magnitude and dispersive nature of the complex index of refraction is described for a num...
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: physica status solidi (b)
سال: 1985
ISSN: 0370-1972,1521-3951
DOI: 10.1002/pssb.2221280106