On-line nuclear orientation of the deformed neutron-deficient Eu,Sm and Pm isotopes |
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| Authors: | B D D Singleton P M Walker A Bhagwat S S Al-Ghamdi C G Barham I S Grant A G Griffiths J Rikovska N J Stone |
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| Institution: | (1) University of Surrey, Guildford, GU2 5XH, Surrey, UK;(2) University of Manchester, M13 9PL Manchester, UK;(3) Clarendon Laboratory, Oxford University, OX1 3PU Oxford, UK |
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| Abstract: | Low-temperature nuclear orientation measurements made on-line at the SERC Daresbury Laboratory on142m
Eu,141m
Sm, and141Pm, with known magnetic dipole moments, have yielded the magnitude of the hyperfine fields of these isotopes in an iron host
lattice. Thus measurements for the isotopes139, 138Eu,139m
Sm, and138Pm yielded values for the respective magnetic moments. Limits on the thermal relaxation times of Eu and Sm isotopes in Fe
were also deduced. The results for138Eu appear to contradict the earlier πh11/2⊗νh11/2 ground-state configuration assignment. |
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