MAGNETIC HYPERFINE INTERACTIONS IN $^{171}$YbF AND $^{173}$YbF1
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Date
2006
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Ohio State University
Abstract
The heavy polar molecule ytterbium monofluoride, YbF, has been used to set an upper limit on the electric-dipole moment of the electron, ${\it d}_e$} \textbf{98}, 023003-4 (2002).}. The extraction of ${\it d}_e$ from experimental data requires knowledge of the effective electric field in the region of the Yb nucleus, which can only be obtained from electron structure calculations} \textbf{104}, 223-239 (2005).}. The most effective means of gauging the quality of the predicted wavefunction in the region of the nucleus is via a comparison with experimental measurements of the magnetic hyperfine interactions. Here we report on $^{171}$Yb(I=1/2), $^{173}$Yb(I=5/2), and $^{19}$F(I=1/2) magnetic hyperfine interactions from the analysis of the $A^2\Pi_{1/2}-X^2\Sigma^+$ (0,0) band of ytterbium monofluoride, YbF, recorded at the near-natural linewidth limit. The results are compared with {\it ab initio} predictions$^b$, the microwave measurements for $^{174}$YbF} \textbf{115}, 6979-6989 (2001).}, and the matrix-isolated ESR results for $^{171}$YbF} \textbf{82}, 1192-1194 (1978).}.
Description
Author Institution: Department of Chemistry and Biochemistry, Arizona State \\University, Tempe, AZ, USA 85287; Physics Department, University of New Brunswick, Fredericton, NB, Canada E3B 5A3