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- W3021065420 abstract "The binding energies of high-$L$ Rydberg levels of Pb${}^{+}$ with $n=19$ or 20 and $6ensuremath{leqslant}Lensuremath{leqslant}10$ were measured with resonant excitation Stark ionization spectroscopy (RESIS). When combined with previous measurements of members of the $mathit{nh}$ Rydberg series in Pb${}^{+}$, and analyzed with the long-range polarization model, these determined the polarizability of the $5{d}^{10}6{s}^{2}$ ground state of Pb${}^{2+}$ to be ${ensuremath{alpha}}_{d}$ $=$ 13.62(8) a.u. This value is substantially larger than the estimate published recently based on the measured lifetime of the $6s6{p}^{1}{P}_{1}$ resonance level of Pb${}^{2+}$, 7.9(6) a.u. The difference is mostly due to the polarizability of Pb${}^{4+}$, the $5{d}^{10}$ core of the Pb${}^{2+}$ ion. This was established by observation of resolved fine structure in the excitation of $n=39$, high-$L$ Rydberg levels of Pb${}^{3+}$, using the same RESIS technique. Analysis of this spectra determined the polarizability of Pb${}^{4+}$ to be ${ensuremath{alpha}}_{d}$ $=$ 3.61(4) a.u. Reanalysis of optical spectra of $mathit{nh}$ and $mathit{ng}$ levels in Pb${}^{+}$ and Pb${}^{3+}$ in view of the polarizabilities determined in the RESIS studies indicates revised ionization energies of both ions, ${E}_{mathrm{I}}$(Pb${}^{+}$) $=$ 121245.28(6) cm${}^{ensuremath{-}1}$ and ${E}_{mathrm{I}}$(Pb${}^{3+}$) $=$ 341 435.1(8) cm${}^{ensuremath{-}1}$." @default.
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- W3021065420 date "2010-04-16" @default.
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- W3021065420 title "Polarizabilities of Pb<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msup><mml:mrow /><mml:mrow><mml:mn>2</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>and Pb<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msup><mml:mrow /><mml:mrow><mml:mn>4</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>and ionization energies of Pb<mml:math xmlns:mml=http://www.w3.org/1998/Math/…" @default.
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- W3021065420 doi "https://doi.org/10.1103/physreva.81.042512" @default.
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