Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/6524
Title: | Erbium implantation in strontium titanate |
Author: | Araújo, J.P. Wahl, U. Alves, E. Correia, J.G. Monteiro, T. Soares, J. Boemare, C. |
Keywords: | Emission channeling Ion implantation Photoluminescence Radioactive isotopes SrTiO3 |
Issue Date: | 2002 |
Publisher: | Elsevier |
Abstract: | We report on the lattice location of Er in SrTiO3 single crystals using the emission channeling technique. The angular distribution of conversion electrons emitted from 167mEr (T1/2 = 2.27 s) was monitored with a position-sensitive detector following the room-temperature 60 keV implantation of the precursor isotope 167Tm (T1/2 = 9.25 d) to a dose of 2 × 1012 at./cm2. The results for the sample annealed in vacuum at 610 °C for 15 min provide direct evidence that Er occupies both Sr and Ti substitutional lattice sites. In addition, thermal recovery of lattice damage was also studied with Rutherford backscattering/channeling for SrTiO3 implanted to doses of 5 × 1014 and 5 × 1015 Er/cm2. We further comment on preliminary photoluminescence results from these samples |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/6524 |
DOI: | 10.1016/S0168-583X(02)00583-9 |
ISSN: | 0168-583X |
Appears in Collections: | DFis - Artigos |
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File | Description | Size | Format | |
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NIMB.pdf | versão pdf do editor | 541.39 kB | Adobe PDF |
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