Spectroscopy of condensed matter

Isotopic shift in the IR of germanium single crystals

G. I. Kropotov^a, V. E. Rogalin^b, I. A. Kaplunov^c, A. A. Shakhmin^a, S. A. Filin^d, A. D. Bulanov<sup>e

a</sup> Tydex LLC, St. Petersburg, Russia
^b Institute of Problems of Electrophysics of the Russian Academy of Sciences, St. Petersburg, Russia
^c Tver State University, Tver, Russia
^d Plekhanov Russian State University of Economics, Moscow, Russia
^e Institute of Chemistry of High-Purity Substances RAS, Nizhny Novgorod, Russia

Abstract: A clear correspondence between the position of the peak in the IR absorption spectrum of isotopically pure germanium single crystals and the mass number of the isotope was found. The dependence obtained can be used for express analysis of the mass composition of isotopically pure germanium single crystals.

Keywords: germanium, isotopes, absorption.

Received: 16.11.2022
Revised: 16.11.2022
Accepted: 16.05.2023

DOI: 10.21883/OS.2023.06.55926.4334-22

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