Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/6119
Title: Optical activity and damage recovery of erbium implanted strontium titanate
Author: Monteiro, T.
Soares, M.J.
Boemare, C.
Alves, E.
Correia, J.G.
Keywords: SrTiO3
Er3þ luminescence
RBS
Issue Date: 2002
Publisher: Taylor and Francis
Abstract: Single crystalline SrTiO3 samples were implanted with Er ions of 150 keV at room temperature with fluences of 5x10(14) and 5x10(15) . Annealing treatments were carried out both in reducing and oxidising atmospheres to recover the implantation damage. Infrared 1.54 mum Er3+ luminescence between the two lowest spin-orbit levels I-4(13/2) --> I-4(15/2) as well as emission from higher excited states S-4(3/2) --> I-4(15/2) , F-4(9/2) --> I-4(15/2) and S-4(3/2) --> I-4(13/2) were observed in the implanted samples with highest fluence, annealed either in air or in vacuum. Multiple site location of Er3+ ion is discussed and compared with RBS/C and emission channelling results that indicate that Er goes to Sr and Ti sites.
Peer review: yes
URI: http://hdl.handle.net/10773/6119
DOI: 10.1080/10420150215807
ISSN: 1042-0150
Appears in Collections:DFis - Artigos

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