Title: Direct evidence for tetrahedral interstitial Er in Si
Authors: Wahl, Ulrich ×
Vantomme, André
DeWachter, J
Moons, R
Langouche, Guido
Marques, JG
Correia, JG
ISOLDE Collaboration #
Issue Date: Sep-1997
Publisher: American physical soc
Series Title: Physical Review Letters vol:79 issue:11 pages:2069-2072
Abstract: We report on the lattice location of Er in Si using the emission channeling technique. The angular distribution of conversion electrons emitted by the decay chain Tm-167 (t(1/2=)9.25 d) --> Er-167m (2.27 s) was monitored with a position-sensitive detector following room temperature implantation and annealing up to 950 degrees C. Our experiments give direct evidence that Er is stable on tetrahedral interstitial sites in float-zone Si. We also confirm that rare earth atoms strongly interact with oxygen, which finally leads to their incorporation on low-symmetry lattice sites in Czochralski Si.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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