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Crystal field analysis of different Er3+ sites in LiNbO3
The Er 3+ defect in lithium niobate (LiNbO 3 ), and the slightly different lattice environments ("sites") it experiences, have been investigated with combined excitation-emission spectroscopy under application of hydrostatic pressure and electric fields. The results give a solid basis for...
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Published in: | Radiation effects and defects in solids 2001-11, Vol.155 (1-4), p.253-258 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | The Er
3+
defect in lithium niobate (LiNbO
3
), and the slightly different lattice environments ("sites") it experiences, have been investigated with combined excitation-emission spectroscopy under application of hydrostatic pressure and electric fields. The results give a solid basis for a crystal field analysis which yields site-specific crystal field parameters. We found that the Er
3+
sites can be classified into two groups. Firstly, the sites are distinct due to different relative arrangements of the nearest-neighbor oxygens and secondly they encounter to different local electric fields which are caused by charge compensators and other defects in a more distant neighborhood. |
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ISSN: | 1042-0150 1029-4953 |
DOI: | 10.1080/10420150108214123 |