B. Wodniecka et al., ELECTRIC QUADRUPOLE INTERACTION AT TA-181 PROBES IN HEXAGONAL TINI3-TYPE COMPOUNDS, Journal of alloys and compounds, 219, 1995, pp. 128-131
The perturbed angular correlation technique was applied to study the e
lectric field gradient (EFG) in TiNi,-type compounds. HfPd3, Zr0.98Hf0
.02Pd3 and Ti0.98Hf0.02Pd3 samples were neutron irradiated in order to
produce Ta-181 probes. The perturbed angular correlation measurements
performed in the temperature range 45 K-11O0 K demonstrated the exist
ence of two axially symmetric EFGs in each of the investigated compoun
ds related to the 2(a) and 2(c) probe sites in the DO24 structure. The
temperature dependence of the quadrupole frequencies exhibits differe
nt slope parameters for each of the observed frequencies.