Abstract
Fast two-electron exchange between neutral Sn2+ and doubly ionized Sn4+ impurity negative-U tin centers in partially compensated Pb0.98Sn0.02Na0.01Tl0.01S solid solutions has been found by emission Mössbauer spectroscopy on 119mmSn(119mSn) isotope; the lifetime of the Sn2+ and Sn4+ states changes from ∼6 × 10−4 to ∼8 × 10−9 s with a change in temperature from 295 to 900 K.
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Original Russian Text © E I. Terukov, P.P. Seregin, A.V. Marchenko, 2014, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2014, Vol. 40, No. 5, pp. 22–26.
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Terukov, E.I., Seregin, P.P. & Marchenko, A.V. Temperature dependence of the frequency of two-electron exchange between impurity negative-U tin centers in lead sulfide. Tech. Phys. Lett. 40, 196–198 (2014). https://doi.org/10.1134/S1063785014030134
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DOI: https://doi.org/10.1134/S1063785014030134