Magnetic Susceptibility of Si0,97Ge0,03 Filamentous Crystals Irradiated by Protons

Yu. Pavlovskyy; P. Lytovchenko; I. Ostrovskyy; N.  Pavlovska

doi:10.15330/pcss.20.2.185-189

Authors

Yu. Pavlovskyy Drohobych Ivan Franko State Pedagogical University
P. Lytovchenko Institute for Nuclear Research, NAS of Ukraine
I. Ostrovskyy Lviv Polytechniс National University
N. Pavlovska Drohobych Comprehensive School І-ІІІ degrees №4

DOI:

https://doi.org/10.15330/pcss.20.2.185-189

Keywords:

silicon-germanium, filamentous crystals, f, proton irradiation, susceptibility, thermal annealing

Abstract

The article deals with the filamentous Si_0,97Ge_0,03 crystals with transverse dimensions of 40 ± 2 μm grown by the method of chemical transport reactions in the closed bromide system using gold as a growth initiator. The focus of research was the influence of proton irradiation with doses up to 1∙10¹⁷ p⁺/cm^-2 and the following thermal treatments at temperatures of 200 - 500°C on the magnetic susceptibility of these crystals. The dependence of the magnetic susceptibility on the intensity of the magnetic field of the proton irradiated filamentous Si_0,97Ge_0,03 crystals is described within the framework of the Langevin atom paramagnetism model and explained by the formation of defects of the vacancy type. The revealed increase in the radiation stability of Si0,97Ge0,03 crystals followed the combined effect of radiation and subsequent thermal treatments.

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