Precipitate coarsening and self organization in erbium-doped silica

Mads W. Sckerl, Søren Andreas Guldberg-Kjær, Mogens Rysholt Poulsen, Peixiong Shi, J. Chevallier

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    Abstract

    The influence of heat treatment at and above 1100 degrees C on thin erbium-rich silica layers embedded in silica has been studied experimentally by secondary ion-mass spectrometry and cross-sectional transmission electron microscopy. Redistribution of erbium atoms is observed at these temperatures, and formation of erbium-rich. precipitates is seen to occur if the erbium concentration exceeds similar to 0.01 at. %. These precipitates are observed to coarsen and subsequently dissolve with increasing annealing time. Moreover, self organization of precipitates has been observed in the form of layering of the precipitate ensemble.
    Original languageEnglish
    JournalPhysical Review B
    Volume59
    Issue number21
    Pages (from-to)13494-13497
    ISSN2469-9950
    DOIs
    Publication statusPublished - 1999

    Bibliographical note

    Copyright (1999) by the American Physical Society.

    Keywords

    • SIO2
    • CLUSTERS
    • DIFFUSION
    • ION-IMPLANTATION
    • LAYERS
    • FIBERS
    • ABSORPTION
    • GLASS

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