Title: Lattice location and stability of implanted Cu in ZnO
Authors: Wahl, Ulrich
Rita, E
Correia, JG
Alves, E
Soares, JG
Issue Date: Jan-2004
Publisher: American physical soc
Series Title: Physical Review B vol:69 issue:1 pages:-
Abstract: The lattice location of copper in single-crystalline zinc oxide was studied by means of the emission channeling technique. Following 60-keV room-temperature implantation at a fluence of 2.3 x 10(13) cm(-2), the angular distribution of beta(-) particles emitted by the radioactive isotope Cu-67 was measured by a position-sensitive detector. The beta(-) emission patterns give direct evidence that in the as-implanted state a large fraction of Cu atoms (60%-70%) occupy almost ideal substitutional Zn sites with root-mean-square (rms) displacements of 0.16-0.17 Angstrom. However, following annealing at 600 degreesC and above Cu was found to be located on sites that are characterized by large rms displacements (0.3-0.5 Angstrom) from Zn sites.
ISSN: 1098-0121
Publication status: published
KU Leuven publication type: DI
Appears in Collections:Non-KU Leuven Association publications

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