Abstract
Isomers in Ga66, Ge67, and Ge69 were recoil implanted into ferromagnetic hosts of iron and gadolinium at ≈6 K, and the hyperfine magnetic fields were determined by time differential perturbed angular distribution (TDPAD) measurements. The hyperfine field strengths at ≈6 K are compared to the results of previous higher-temperature measurements and the amplitudes of the R(t) functions are compared to empirical expectations. The results show that gadolinium can be a suitable host for high-precision in-beam g-factor measurements. The results of new g-factor measurements for isomers in Ga66 and Ge67 are g(Ga66, 7-)=+0.126(4), supporting a [πf5/2a - νg9/2]7- configuration assignment, and g(Ge67, 9/2+)=-0.1932(22), derived from a new measurement of the ratio g(67Ge)/g(69Ge)=0.869(9). These values are in agreement with previous results. The R(t) amplitudes indicate that the nuclear alignment produced in the isomeric states was significantly lower than the empirically expected σ/I≈0.35.
Original language | English |
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Article number | 054302 |
Journal | Physical Review C |
Volume | 101 |
Issue number | 5 |
DOIs | |
Publication status | Published - May 2020 |