Abstract
The hyperfine structure of the 4f 13 6s 2 2 F 7/2 ground state of Tm169 has been studied with the atomic beam magnetic resonance method. By measuring strongly field-dependent transitions in external magnetic fields between 2200 and 3000 Gauss the interaction between the nuclear magnetic dipole momentμ I and the external field was determined. These measurements yielded a direct value forμ I independent of the electronic properties of the Tm-atom. The results are:μ I=− 0.2310 (15)μ n (diamagnetically corrected), magnetic dipole interaction constanta=− 374.137661(3) Mc/sec andg J(4f 13 6s 2 2 F 7/2)=1.141189 (3).
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Thanks are due to the Deutsche Forschungsgemeinschaft and the Bundesministerium für wissenschaftliche Forschung for financial support and to Feinmechanikermeister E.Ehrbar for essential contributions to the construction of the apparatus.
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Giglberger, D., Penselin, S. Ground-State hyperfine structure and nuclear magnetic moment of Thulium-169. Z. Physik 199, 244–255 (1967). https://doi.org/10.1007/BF01326434
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DOI: https://doi.org/10.1007/BF01326434