Structural Properties of MnTe, ZnTe, and ZnMnTe
N. Gonzalez Szwacki, E. Przeździecka, E. Dynowska, P. Bogusławski and J. Kossut
Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
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Structural properties of ZnTe, MnTe, and Mn1-xZnxTe alloy with zinc-blende, NiAs, and wurtzite phases were investigated by ab initio calculations. The calculated structural properties are in good agreement with the available experimental data. Theory predicts that the zinc-blende phase is more stable than wurtzite for all compositions. Mn1-xZnxTe samples with 0.01< x<0.20 were grown by MBE. X-ray analysis of their crystalline structure revealed the presence of zinc-blende, wurtzite, and NiAs phases. The dominant phase changes from NiAs for the sample with x=0.01 to wurtzite for x=0.20. The observed stabilization of the wurtzite phase is possibly due to the hexagonal structure of the MnTe buffer.
DOI: 10.12693/APhysPolA.106.233
PACS numbers:61.50.Ah, 75.50.Pp, 61.10.-i