Loading…

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...

Full description

Saved in:
Bibliographic Details
Published in:Radiation effects and defects in solids 2001-11, Vol.155 (1-4), p.253-258
Main Authors: Dierolf, V., Sandmann, C., Kutsenko, A. B., Tröster, Th
Format: Article
Language:English
Subjects:
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
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.
ISSN:1042-0150
1029-4953
DOI:10.1080/10420150108214123