Abstract
Using the high-resolution 93.3-keV transition in67Zn we studied the temperature dependence of the Lamb-Mossbauer factor (LMF), the center shift, and the quadrupole interaction in polycrystalline ZnF2 in the temperature range between 4.2 and 55.3 K. The LMF is anisotropic within the whole temperature range. The electric quadrupole tensor characterized byeV zz Q/h=+(8.2±0.1) MHz and η=(0.15±0.02) is independent of temperature. The results on the isomer shift (relative to ZnO) and on the electric quadrupole tensor are in very good agreement with recent theoretical cluster calculations.
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