Abstract
ZnGeP2 crystallizes congruently through an β->α phase transition. The high temperature β-phase has a diamond-like cubic structure, with Zn and Ge ions randomly distributed on the metal sublattice. The α-ZnGeP2 crystal has an ordered tetragonal (chalcopyrite) 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 β-ZnGeP2 structure was identified, however, within the tetragonal ZnGeP2 crystals, indicating an incomplete transition. The β-ZnGeP2 phase was partially retained by rapid quenching from the melt.
Original language | English |
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Pages (from-to) | 277-284 |
Number of pages | 8 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 3110 |
DOIs | |
State | Published - 1 Dec 1997 |
Event | 10th Meeting on Optical Engineering in Israel - Jerusalem, Israel Duration: 2 Mar 1997 → 2 Mar 1997 |
Keywords
- Coherent domains
- Crystal growth
- Order-disorder transition
- Rietveld analysis
- X-ray diffraction
- Zinc germanium phosphide
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering