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Explosive crystallization phenomena in SOI structures

Published online by Cambridge University Press:  31 January 2011

H. D. Geiler ,
M. Wagner ,
E. Glaser ,
G. Andrä ,
D. Wolff  and
G. Götz
H. D. Geiler
Affiliation:
Friedrich Schiller Universität, Sektion Physik, Max-Wien-Platz I, DDR-6900 Jena, German Democratic Republic
M. Wagner
Affiliation:
Friedrich Schiller Universität, Sektion Physik, Max-Wien-Platz I, DDR-6900 Jena, German Democratic Republic
E. Glaser
Affiliation:
Friedrich Schiller Universität, Sektion Physik, Max-Wien-Platz I, DDR-6900 Jena, German Democratic Republic
G. Andrä
Affiliation:
Friedrich Schiller Universität, Sektion Physik, Max-Wien-Platz I, DDR-6900 Jena, German Democratic Republic
D. Wolff
Affiliation:
Friedrich Schiller Universität, Sektion Physik, Max-Wien-Platz I, DDR-6900 Jena, German Democratic Republic
G. Götz
Affiliation:
Friedrich Schiller Universität, Sektion Physik, Max-Wien-Platz I, DDR-6900 Jena, German Democratic Republic
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Abstract

Using the double pulse technique with two synchronized lasers, we studied the conditions of ignition and evolution of explosive crystallization. The structure of the resulting crystallized layers is analyzed by TEM. Results of calculations are reported describing the development of the two phase fronts: amorphous/molten and molten/crystalline. It is shown that the system takes more than 500 ns to reach the steady state. The experimental results support the model of creating first a melt nucleus in the amorphous layer followed by the formation of the crystalline nucleus in the molten sphere. Competitive solid phase nucleation and growth in the amorphous layer limit the temperature-time interval of melt nucleation. Defined explosively crystallized areas in laterally structured SOI layers are presented.

Type
Articles
Information
Journal of Materials Research , Volume 4 , Issue 6 , December 1989 , pp. 1473 - 1479
Copyright
Copyright © Materials Research Society 1989

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References

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