The nuclear quadrupole interaction of Ta-181 in the intermetallic compound Hf2Rh
Cekić, Božidar Đ.
Koteski, Vasil J.
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The time differential perturbed angular correlation technique has been used to measure the electric field gradient at Ta-181 impurities in the intermetallic compound Hf2Rh. The results of the measurements show the presence of tare independent quadrupole interactions. At room temperature the interaction frequencies are omega(Q1) = 58 Mrad s(-1) and w(Q2) = 239 Mrad s(-1). The electric field gradient V-zz, the corresponding asymmetry parameter eta and the distribution parameter delta exhibit a pronounced temperature dependence from 78 to 1223 K.