Parameters of complex structure of optical functions of stannide diamagnium | Izvestiya vuzov. Fizika. 2019. № 5. DOI: 10.17223/00213411/62/5/69

Parameters of complex structure of optical functions of stannide diamagnium

The spectra of sixteen optical functions Mg₂Sn in the range 1 to11 eV at 77 K are determined. The calculations were performed using known experimental reflection spectrum R ( E ), software packages created on the basis of the Kramers-Kronig relations and analytical formulas for the connection between optical functions. Their main features and general patterns have been established. The integral spectra of the imaginary part of the dielectric constant ε₂( E ) are decomposed into elementary components in the region 2 to 5.5 eV using an improved nonparametric method of combined Argand diagrams taking into account the effective number of valence electrons participating in the formation of individual bands. The energies of the maxima and the strength of the oscillators of the elementary components of the transition bands were determined, their supposed nature and localization were proposed, based on the data of well-known theoretical calculations.

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Keywords

improved method, Argand diagram, volume and surface energy losses, dielectric constant, oscillator strength, exciton, interband transition, step, maximum, optical function, stannide dimagnium, усовершенствованный метод, диаграмма Арганда, объемные и поверхностные потери энергии, диэлектрическая проницаемость, сила осциллятора, экситон, междузонный переход, ступенька, максимум, оптическая функция, станнид димагния

Authors

Name	Organization	E-mail
Sobolev Val.V.	Kalashnikov Izhevsk State Technical University	Soboleff.val@yandex.ru
Sobolev V.V.	Udmurt State University	sobolev@uni.udm.ru

Всего: 2

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