Aggregation and precipitation stages in NaCl:Pb2+ studied by UV absorption

Arora, Akhilesh K. ; Kesavamoorthy, R. ; Sood, A. K. (1984) Aggregation and precipitation stages in NaCl:Pb2+ studied by UV absorption Solid State Communications, 49 (9). pp. 871-874. ISSN 0038-1098

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Official URL: http://www.sciencedirect.com/science/article/pii/0...

Related URL: http://dx.doi.org/10.1016/0038-1098(84)90442-3

Abstract

UV absorption measurements during isochronal annealing of homogenised and as-grown single crystals show two distinct stages in NaCl:Pb2+ where number density of free impurities reduce. With the help of our earlier light scattering results the low temperature stage has been attributed to aggregation of impurity-vacancy dipoles whereas the stage appearing at the higher temperature is assigned to the precipitation process.

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ID Code:50226
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