Abstract
In an earlier paper (Phys. Rev. B 34, 3970 (1986)), the temperature-dependent results of thermal-vibration x-ray studies on a (001)= CdTe crystal have been reported. This note supplements the results mentioned above with additional temperature-dependent data taken on a (111) crystal. CdTe has a zinc-blende structure with a cubic lattice parameter of 6.482 A. With the use of both the (001) and (111) sets of data, an x-ray Debye temperature of FTHETA/sub M/ = 141 +- 2 K and a harmonic one-particle potential parameter ..cap alpha.. = 1.43 +- 0.06 eV/A/sup 2/ have been found. Harmonic thermal parameters for the individual Cd and Te atoms yield FTHETA/sub M//sub ,Cd/ = 134 +- 3 K and FTHETA/sub M//sub ,Te/ = 146 +- 3 K. Anharmonic parameters could not be accurately determined.
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