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 Erbium implantation in strontium titanate
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/6524

title: Erbium implantation in strontium titanate
authors: 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
URI: http://hdl.handle.net/10773/6524
ISSN: 0168-583X
publisher version/DOI: dx.doi.org/10.1016/S0168-583X(02)00583-9
source: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
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