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Proceedings Paper

Cubic domains in tetragonal ZnGeP2 single crystals
Author(s): Yehoshua Shimony; O. Raz; M. P. Dariel; Giora Kimmel
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Paper Abstract

ZnGeP2 crystallizes congruently through an (beta) > (alpha phase transition. The high temperature (beta) -phase has a diamond-like cubic structure, with Zn and Ge ions randomly distributed on the metal sublattice. The (alpha) - ZnGeP2 crystal has an ordered tetragonal structure, in which the Zn and Ge ions occupy different crystallographic sites. In the present study, good quality ZnGeP2 crystals have been grown by means of the Horizontal Gradient Freezing technique. A small amount of coherently oriented domains of the cubic (beta) -ZnGeP2 structure was identified, however, within the tetragonal ZnGeP2 crystals, indicating an incomplete transition. The (beta) - ZnGeP2 phase was partially retained by rapid quenching from the melt.

Paper Details

Date Published: 22 September 1997
PDF: 8 pages
Proc. SPIE 3110, 10th Meeting on Optical Engineering in Israel, (22 September 1997); doi: 10.1117/12.281382
Show Author Affiliations
Yehoshua Shimony, Nuclear Research Ctr.-Negev (Israel)
O. Raz, Ben-Gurion Univ. of the Negev (Israel)
M. P. Dariel, Ben-Gurion Univ. of the Negev (Israel)
Giora Kimmel, Nuclear Research Ctr.-Negev (Israel)

Published in SPIE Proceedings Vol. 3110:
10th Meeting on Optical Engineering in Israel
Itzhak Shladov; Stanley R. Rotman, Editor(s)

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