论文标题
$^{66} $ ga，$^{67,69} $ ge植入铁和gadolinium宿主的$^{66} $ ga，在6 k的托管
Hyperfine fields at $^{66}$Ga, $^{67,69}$Ge implanted into iron and gadolinium hosts at 6 K, and applications to g-factor measurements
论文作者
论文摘要
$^{66} $ ga，$^{67} $ ge和$^{69} $ ge中的异构体被延伸到$ 6 $ 〜k的铁和gadolinium的铁磁性宿主中，大约6 $ 〜k，由时间差异扰动的角度分配（TDDPAD）确定超精美的磁场。将$ \ 6 $ 〜k的超细场强度与以前的高温测量结果进行了比较，将$ r（t）$函数的振幅与经验期望进行了比较。结果表明，gadolinium可以是适合高精度内$ G $ $ $因素测量值的宿主。 $^{66} $ ga和$^{67} $ ge in $ g（^{66} $ ga $，7^{ - }）= +0.126（4）$的新$ g $ - 因子测量结果是$^{66} $ ga和$^{67} $ ge是$ g（^{66} $ ga $，7^{ - }）$配置分配和$ g（^{67} $ ge $，\ frac {9} {2}^{+}）= - 0.1932（22）$，是从比率$ g（^{67} \ 67} \ MATHRM {ge} {ge}）/g（ge}）/g（^99} = 69} = 69} 0的新测量中得出的。这些值与以前的结果一致。 $ r（t）$振幅表明，在异构体状态下产生的核对准明显低于经验预期的$σ/i \约0.35 $。
Isomers in $^{66}$Ga, $^{67}$Ge, and $^{69}$Ge were recoil-implanted into ferromagnetic hosts of iron and gadolinium at $\approx 6$~K, and the hyperfine magnetic fields were determined by Time Differential Perturbed Angular Distribution (TDPAD) measurements. The hyperfine field strengths at $\approx 6$~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 $^{66}$Ga and $^{67}$Ge are $g(^{66}$Ga$,7^{-}) = +0.126(4)$, supporting a $[π_{f5/2} \otimes νg_{9/2}]_{7^-}$ configuration assignment, and $g(^{67}$Ge$,\frac{9}{2}^{+})=-0.1932(22)$, derived from a new measurement of the ratio $g(^{67}\mathrm{Ge})/g(^{69}\mathrm{Ge}) = 0.869(9)$. 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 $σ/I \approx 0.35$.
