Impurity tin atoms in glassy As x S1 − x and As x Se1 − x
G. A. BordovskyGertsen State Pedagogical University, nab. Moiki 48, St. Petersburg, 191186, RussiaА. В. МарченкоGertsen State Pedagogical University, nab. Moiki 48, St. Petersburg, 191186, RussiaП. П. СерегинGertsen State Pedagogical University, nab. Moiki 48, St. Petersburg, 191186, RussiaК. У. БобохужаевUlugbek National University of Uzbekistan, Vuzgorodok, Tashkent, 700095, Uzbekistan
ABI
Аннотация
119Sn Mössbauer emission spectroscopy data demonstrate that the impurity tin atoms resulting from the radioactive decay of the 119Sb isotope in the structure of glassy As x S1 − x and As x Se1 − x alloys reside on the arsenic site and act as two-electron amphoteric centers with a negative correlation energy: tetravalent six-coordinate tin acts as a singly ionized donor, and divalent three-coordinate tin, as a singly ionized acceptor.
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