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The Effects of Annealing on the Structure and Distribution of Charge States of Iron Implanted into A-Al2O, at 77 K

Published online by Cambridge University Press:  25 February 2011

C. J. Mchargue ,
P. S. Sklad ,
J. C. Mccallum ,
C. W. White ,
J. C. Mccallum ,
C.W. White ,
A. Perez  and
G. Marest
C. J. Mchargue
Affiliation:
Oak Ridge National, Laboratory, Oak Ridge, TN 37831-6118
P. S. Sklad
Affiliation:
Oak Ridge National, Laboratory, Oak Ridge, TN 37831-6118
J. C. Mccallum
Affiliation:
Oak Ridge National, Laboratory, Oak Ridge, TN 37831-6118
C. W. White
Affiliation:
Oak Ridge National, Laboratory, Oak Ridge, TN 37831-6118
J. C. Mccallum
Affiliation:
Oak Ridge National, Laboratory, Oak Ridge, TN 37831-6118
C.W. White
Affiliation:
Oak Ridge National, Laboratory, Oak Ridge, TN 37831-6118
A. Perez
Affiliation:
Oak Ridge National, Laboratory, Oak Ridge, TN 37831-6118
G. Marest
Affiliation:
University Claude Bernard-Lyon 1, Villeurbanne Cedex, France
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Abstract

Implantation of iron Into α-Al2O3 at 77 K produces an amorphous state for fluences greater than about 3 × 1016 Fe/cm2. Iron in the as-implanted (amorphous) specimens is distributed among two Fe2+, two Fe4+, and the Fe° states. The conversion electron Mössbauer (CEMS) spectra for a sample containing 7 × 1016 Fe/cm2 show all iron to be converted to Fe3+ after annealing in oxygen for 1 h at 700°C and above. The transmission electron microscopy (TEM) shows the structure to be mostly Y-A120, after the 900°C anneal and all α-Al2O, after the 1100°C anneal.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 157: Symposium A – Beam-Solid Interactions: Physical Phenomena , 1989 , 555
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

1 Sawicka, B. D. and Sawicki, J. A., Topics in Current Physics, edited by Gonser, U. (Springer, Berlin, 1981) 60, pp. 139–166.Google Scholar
2 White, C. W., McHargue, C. J., Sklad, P. S., Boatner, L. A., and Farlow, G. C., Mater. Sci. Reports 4, 41 (1989).Google Scholar
3 Farlow, G. C., White, C. W., McHargue, C. J., Sklad, P. S., and Appleton, B. R., Nucl. Instrum. Methods B7/8, 541 (1985).Google Scholar
4 McHargue, C. J., Farlow, G. C., Sklad, P. S., White, C. W., Perez, A., Kornilios, N., and Marest, G., Nucl. Instrum. Methods B19/20, 813 (1987).Google Scholar
5 McHargue, C. J., Sklad, P. S., McCallum, J. C., White, C. W., Perez, A., and Marest, G., accepted for publication in Nucl. Instrum. Methods in Phys. Res. B.Google Scholar