Isotopic Shift in the IR of Germanium Single Crystals
Kropotov G. I. 1, Rogalin V. E. 2, Kaplunov I. A. 3, Shakhmin A. A. 4, Filin S. A. 5, Bulanov A. D. 6
1Tydex LLC, St. Petersburg, Russia
2Institute for Electrophysics and Electric Power, Russian Academy of Sciences, St. Petersburg, Russia
3Tver State University, Tver, Russia
4TYDEX, LLC, St. Petersburg, Russia
5Plekhanov Russian University of Economic, Moscow, Russia
6Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, Nizhny Novgorod, Russia
Email: grigorykropotov@tydex.ru, v-rogalin@mail.ru, kaplunov.ia@tversu.ru, AlexeyShakhmin@tydex.ru, Filin.SA@rea.ru, bulanov@ihps-nnov.ru

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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. DOI: 10.61011/EOS.2023.06.56675.4334-22
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