%0 Generic %A Cheng, Yongjun %A Mitroy, J %D 2013 %T The polarizabilities of some low-lying states of the Ga2 + and Ga+ ions %U https://iop.figshare.com/articles/dataset/_The_polarizabilities_of_some_low_lying_states_of_the_Ga_sup_2_sup_and_Ga_sup_sup_ions/1012719 %R 10.6084/m9.figshare.1012719.v1 %2 https://ndownloader.figshare.com/files/1480542 %K group III ions %K Ga 2 %K rm %K configuration interaction method %K polarizabilitie %K blackbody radiation shifts %K blackbody radiation shift %K Atomic Physics %K Molecular Physics %X

Table 5. The polarizabilities of some low-lying states of the Ga2 + and Ga+ ions. The scalar adiabatic polarizabilities, αk, are listed along with some non-adiabatic, βk, and tensor, \alpha ^{(1)}_{2, L_0 L_0}, polarizabilities. The polarizabilities are in atomic units and the notation a[b] means a × 10b.

Abstract

The blackbody radiation shift of the Ga+4{\rm s}^2 \ ^1{\rm S}^{\rm e}_0 \rightarrow 4{\rm s}4{\rm p} \ ^3{\rm P}^{\rm o}_0 clock transition is computed to be −0.0140 ± 0.0062 Hz at 300 K. The small shift is consistent with the blackbody radiation shifts of the clock transitions of other group III ions which are of a similar size. The polarizabilities of the Ga+4{\rm s}^2 \ ^1{\rm S}^{\rm e}_0, 4{\rm s}4{\rm p} \ ^3{\rm P}^{\rm o}_0, and 4{\rm s}4{\rm p} \ ^1{\rm P}^{\rm o}_1 states were computed using the configuration interaction method with an underlying semi-empirical core potential. Quadrupole and non-adiabatic dipole polarizabilities were also computed. A byproduct of the analysis involved calculations of the low-lying spectrum and oscillator strengths, including polarizabilities, of the Ga2 + ion.

%I IOP Publishing