Summary
The experimentally observed presence in NaCl and KC1 crystals of comparable concentrations of complexes between divalent impurity cations and positive-ion vacancies in the ground and first excited states, is shown to be in agreement with the results yielded by the Born-Mayer theory of ionic crystals. Theoretical estimates for the binding energy of the first excited state of the Sr2+ impurity complex and of the vacancy pair in NaCl and KC1 crystals are presented and discussed.
Riassunto
Si mostra che la presenza in oristalli di NaCl e KC1 di concentrazioni confrontabili di complessi fra cationi d’impurità bivalenti e posti vaoanti da ione positivo negli stati fondamentale e primo eccitato, osservata sperimentalmentei è in accordo con i risultati forniti dalla teoria di Born-Mayer dei oristalli ionioi. Sono presentati e discussi risultati teorici per l’energia di legame del primo stato eccitato del oomplesso di impurità per ioni Sr2+ e della coppia di posti vaoanti in cristalli di NaCl e KCl.
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Tosi, M.P., Airoldi, G. The interaction between equilibrium defects in the alkali halides: The « First excited state » binding energies of the impurity complex and of the vacancy pair. Nuovo Cim 8, 584–589 (1958). https://doi.org/10.1007/BF02828772
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DOI: https://doi.org/10.1007/BF02828772