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The lattice constants of ternary and quaternary alloys in the PbTe–SnTe–MnTe system |
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| Authors: | S. Miotkowska E. Dynowska I. Miotkowski A. Szczerbakow B. Witkowska J. Kachniarz W. Paszkowicz |
| Affiliation: | a Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668 Warsaw, Poland b Department of Physics, Purdue University, West Lafayette, IN 47907, USA |
| Abstract: | The study of structural properties of quaternary Pb1−x−ySnxMnyTe alloys revealed that they crystallise in a cubic structure of NaCl-type for a wide region of manganese content (up to y=0.16). It was found from X-ray measurements and microprobe analysis that Vegard's law is obeyed. The dependencies of the lattice constants on composition for Pb1−x−ySnxMny, Pb1−yMnyTe and Sn1−yMnyTe were used to extract the lattice parameter of NaCl-type MnTe phase by extrapolation. The experimental data were also used to obtain an improved estimate of the covalent octahedral radius for Mn. |
| Keywords: | IV–VI semiconductors Lattice constants |
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