Precipitate coarsening and self organization in erbium-doped silica

被引：29

作者：

Sckerl, MW

Guldberg-Kjaer, S

Poulsen, MR

Shi, P

Chevallier, J

机构：

[1] Tech Univ Denmark, Mikroelektron Ctr, DK-2800 Lyngby, Denmark

[2] Aarhus Univ, Inst Phys & Astron, DK-8000 Aarhus C, Denmark

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.59.13494

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

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页码：13494 / 13497

页数：4

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