Solubility Limit of Ni in Cd1-xNixTe Crystals
S. Miotkowskaa, I. Miotkowskib and E. Dynowskaa
aInstitute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland
bDepartment of Physics, Purdue University, West Lafayette, IN 47907, USA
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The Cd1-xNixTe crystals were grown by the Bridgman method. The investigated samples were cut from five different ingots with nominal contents of nickel varied from 0.005 to 0.05. The investigations were performed using X-ray powder diffraction method and energy dispersive and wavelength dispersive electron microprobe analysis. The samples were ałso examined in a scanning electron microscope. Examinations of wavelength dispersive electron microprobe analysis show that the actual contents of nickel differ from the nominal values. The solubility limit of nickel was determined to be x = 0.005. The precipitates of NiTe were found in samples of a greater content of nickel. Their dimensions were between 5 to 90 micrometers. X-ray powder diffraction measurements did not reveal any significant change of the lattice constant of investigated crystals in comparison with pure CdTe.
DOI: 10.12693/APhysPolA.86.737
PACS numbers: 81.10.Fq, 61.66.Dk