ACTA

Solubility and Segregation of Co in CdTe-Based Ternary and Quaternary Alloys

S. Miotkowska^a, E. Dynowska^a, I. Miotkowski^b, H. Alawadhi^c, A. Lewicki^b, P.A. Metcalf^b and A.K. Ramdas^b
^aInstitute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
^bDepartment of Physics, Purdue University, West Lafayette, IN 47907, USA
^cDepartment of Basic Sciences, University of Sharjah, United Arab Emirates

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Single crystals of Cd_1-xCo_xTe and Cd_1-x-yCo_xMn_yTe are characterized with X-ray powder diffraction and electron microprobe to establish compositional dependence of the lattice parameters and deduce Co solubility limit. The experimental compositional profiles are examined on specimens taken from various locations of ingots along their longitudinal axes and compared with normal freezing distributions. The values of Co segregation coefficient are analyzed for both ternary and quaternary alloys in terms of normal freezing mode.

DOI: 10.12693/APhysPolA.101.735
PACS numbers: 81.05.Dz, 81.10.-h