Native defects and rare-earth impurities interaction in IV–VI crystals

Both EPR spectra of Gd impurity and 119Sn Mössbauer spectra in Pb 1− x Sn x Te grown from the melt by Bridgman method and doped with Gd impurity during the growth process were investigated. It was ascertained that EPR spectra behavior depended on rare-earth impurity concentration, doping method and...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2001-12, Vol.308, p.1057-1060
Main Authors: Zayachuk, D., Polyhach, Ye, Slynko, E., Khandozhko, O., Kempnyk, V., Baltrunas, D.
Format: Article
Language:English
Subjects:
EPR
Gadolinium
Mössbauer effect
Native defects
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Summary:Both EPR spectra of Gd impurity and 119Sn Mössbauer spectra in Pb 1− x Sn x Te grown from the melt by Bridgman method and doped with Gd impurity during the growth process were investigated. It was ascertained that EPR spectra behavior depended on rare-earth impurity concentration, doping method and matrix composition. It was shown that there were some correlations between Gd EPR spectra behavior and 119Sn Mössbauer spectra parameters in doping crystals under investigation. The results obtained are treated on the basis of the model “Gd impurity–Te-vacancy” complexes, whose creation is caused by the interaction between point defects in the matrix and Gd impurity ions during growth process.
ISSN:0921-4526
1873-2135
DOI:10.1016/S0921-4526(01)00839-0