EXAFS Studies of Zn1-xMnxS Ternary Compounds

M. Zimnal-Starnawska, J. Łażewski, A. Kisiel Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Krakow, Poland F. Boscherini, S. Pascareli Laboratori Nationali di Frascati, INFN, via E. Fermi, 00 044 Frascati, Italy and W. Giriat IVIC Centro de Fisica, Caracas, Apartado 21 827, Venezuela

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We performed extended X-ray absorption fine structure (EXAFS) measurements of Zn1-xMnxS solid solution for various concentrations x in the range of 0 ≤ x ≤ 0.4. Data were collected on Zn and Mn K-edges with the use of synchrotron radiation from the ADONE storage ring in Frascati utilizing the Si(111) channel-cut monochromator. Applying the usual procedure of data reduction described elsewhere, we found well-defined different nearest-neighbor Zn-S and Mn-S distances, according to the previous results, almost independent on x. For Mn-S distances in the range of 0.1 ≤ x ≤ 1.0 we found, within the limit of experimental error, a constant value equal to 2.430±0.008 Å. For Zn-S distances for concentration changing from x = 0.0 to x = 0.4 we observed a weak, linear increase from 2.343±0.008 Å to 2.354 ± 0.008 Å, respectively.

DOI: 10.12693/APhysPolA.86.763 PACS numbers: 87.64.Fb, 78.70.Dm