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Phase Transformations in Bulk (Ge2Se7)88Bi5Sb7
Published online by Cambridge University Press: 01 February 2011
Abstract
Annealing at 150 °C induces phase separation in amorphous (Ge2Se7)88Bi5Sb7 bulk samples. Spectrally resolved steady-state photoconductivity measurements indicate the presence of crystalline Bi2Se3 clusters in the annealed material, but also the subsequent gradual disappearance of this microstructure at room temperature. Similar annealing-induced metastable changes are observed in other elements of a (Ge2Se7)88BixSb12-x sample series.
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- Copyright © Materials Research Society 2006