Using the Messbauer spectroscopy method on the 119 Sn isotope, two-electron tin centers with negative correlation energy were identified. It was established that favorable conditions for exchange are realized in PbSe , since for this material the hole concentration is much higher than for PbS.
TWO-ELECTRON IMPURITY CENTERS WITH NEGATIVE CORRELATION ENERGY
DOI:
Keywords:
Mixed centers
point defects
negative correlation energy
Abstract
References
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