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Electric quadrupole orientation of iridium isotopes in rhenium

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Abstract

The quadrupole frequenciese 2 qQ/h, for186, 188–190Ir in a Re single crystal have been determined by nuclear orientation at temperatures down to 2 mK. Using a modeldependent value of +1.0 b for the quadrupole moment of the ground state of189Ir, the electric field gradient of IrRe at 0 K is found to be−3.6×1017 V·cm−2. The value is consistent with systematics proposed by Raghavan et al. Using this EFG, quadrupole moments are deduced for186, 188, 190Ir.

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Authors and Affiliations

  1. Mullard Cryomagnetic Laboratory, Clarendon Laboratory, Oxford, England

    D. W. Murray, A. L. Allsop & N. J. Stone

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  1. D. W. Murray
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  2. A. L. Allsop
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  3. N. J. Stone
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Murray, D.W., Allsop, A.L. & Stone, N.J. Electric quadrupole orientation of iridium isotopes in rhenium. Hyperfine Interact 7, 481–492 (1979). https://doi.org/10.1007/BF01021531

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