Hyperfine structure in Tc I: experiment and theory

11 July 1977

journal article
Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics

Vol. 10 (10) , 1989-2002
https://doi.org/10.1088/0022-3700/10/10/028

Abstract

The low-lying multiplets were studied. HFS intervals have been measured in optical transitions by a photoelectric Fabry-Perot interferometer, and the values of the corresponding magnetic-dipole and electric-quadrupole hyperfine constants A and B have been deduced. Wavefunctions in intermediate coupling and configuration mixing have been determined for the odd levels (configurations 4d⁵5s5p and 4d⁶5p) and for the even levels (configurations (4d+5s)⁷). Using these wavefunctions, the HFS constants of the 4d, 5s and 5p electrons have been derived. An important result is a determination of the electric-quadrupole moment of ⁹⁹Tc, Q=-0.19(5)b, without allowance for the Sternheimer correction.

Keywords

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