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The time-differential perturbed angular correlation technique has been used to study the electric field gradient at lS'Ta impurities in the intermetallic compound HfiNi. The results of the measurements show the presence of a single nuclear quadmpole interaction. At room temperature the frequency of the interaction is UQ = 92(1) Mrad s-'. The electric field gradient V,, and asymmeuy parameter 11 exhibit a pronounced temperature dependence in a range v m g from 78 to 1125 K

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