Precipitate coarsening and self organization in erbium-doped silica

被引：28
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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收藏
页码：13494 / 13497
页数：4
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