Title: Local interactions of Fe-57 after electron capture of Co-57 implanted in alpha-Al2O3 and in alpha-Fe2O3
Authors: Dezsi, I ×
Szucs, I
Fetzer, C
Pattyn, Hugo
Langouche, Guido
Pfannes, HD
Magalhaes-Paniago, R #
Issue Date: Mar-2000
Publisher: Iop publishing ltd
Series Title: Journal of physics-condensed matter vol:12 issue:10 pages:2291-2296
Abstract: alpha-Al2O3 and alpha-Fe2O3 were implanted with Co-57 at room temperature, alpha-Al2O3 showed complex Mossbauer spectra indicating paramagnetic hyperfine splitting for high-spin Fe3+ and electric quadrupole-split spectra for Fe2+ ions. In canted antiferromagnet alpha-Fe2O3, the implanted Co atoms were positioned substitutionally in Fe2O3 and at higher doses in Fe3O4 and in Fe1-xO. In the different phases, the ions were in Fe2+ and/or in Fe3+ stares after the electron capture of Co-57; no after-effects were observed. The results suggest that the phases are formed during fast cooling and crystallization of the oxide from the high-temperature state of the thermal spike.
ISSN: 0953-8984
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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