Anharmonic contributions to the Debye-Waller factor for zinc

Anharmonic contributions to the Debye-Waller factor of Zn for vibrations parallel to the c axis were obtained from the temperature dependence of integrated intensities for Bragg scattering at high temperatures. The Mössbauer technique was used to measure the purely elastic scattering. Both Gaussian and non-Gaussian contributions were found to be important. Their magnitude and sign were derived from the experimental data.