Article

Comparison of the Optical Spectra of Magnesium and Germanium Germanide

Sobolev, V. Val.

Abstract. In this work, the spectra of sixteen fundamental optical functions of Mg₂Ge in the range 0-11 eV at 77 °K are determined. Their main features and general laws are established. They contain six maxima and sthoulders due to interband transitions and metastable excitons. The calculations were carried out on the basis of the known ex-perimental reflection spectrum in the range of 0-11 eV at 77 °K using computer pro-grams created on the basis of the Kramers-Kronig relations and the known analytical formulas for the relationship between optical functions. The spectra of the optical functions of Mg₂Ge and crystalline germanium are compared, and their significant structural differences are established in a wide energy range.

Keywords: magnesium germanide, germanium, optical function, maximum, shoulder, interband transition, exciton, permittivity, Kramers-Kronig relations, bulk and surface energy losses

Pages: 257–265Total pages: 9

Original title: Сопоставление оптических спектров германида магния и германия

Authors: Соболев В. Вал.

Published in: Instrumentation Engineering in the XXI Century – 2020. Integration of Science, Education and Production: Proceedings of the XVI Russian National Scientific Conference (December 2–4, 2020, Izhevsk, Russian Federation)

Year of publication: 2020

Цитирование по ГОСТ 7.1-2003:GOST 7.1-2003 citation:
Sobolev, V. Val. Comparison of the optical spectra of magnesium and germanium germanide // Instrumentation Engineering in the XXI Century – 2020. Integration of Science, Education and Production : Proceedings of the XVI Russian National Scientific Conference (December 2–4, 2020, Izhevsk, Russian Federation). – Izhevsk, Russia : Publishing House of Kalashnikov ISTU, 2020. – Pp. 257–265.