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Nuclear moments of neutron deficient iridium isotopes from laser spectroscopy

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Abstract

Laser spectroscopy measurements have been performed on neutron deficient iridium isotopes. The hyperfine structure and isotope shift of the optical Ir I transition 5d76s2 4F9/2 → 5d76s6p 6F11/2 at 351.5 nm have been studied for the 182–189Ir, \(^{186} {\text{Ir}}^\user1{m} \) and 191,193Ir isotopes. The nuclear magnetic and quadrupole moments were obtained from the HFS measurements and the changes of the mean square charge radii from the IS measurements. A large mean square charge radius change between 187Ir and 186Ir and between \(^{186} {\text{Ir}}^\user1{m} \) and \(^{186} {\text{Ir}}^\user1{g} \) has been observed.

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Verney, D., Le Blanc, F., Cabaret, L. et al. Nuclear moments of neutron deficient iridium isotopes from laser spectroscopy. Hyperfine Interactions 127, 79–82 (2000). https://doi.org/10.1023/A:1012602525009

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