The nuclear quadrupole moment of 57Fe from microscopic nuclear and atomic calculations

Details The nuclear quadrupole moment of 57Fe from microscopic nuclear and atomic calculations The nuclear quadrupole moment of 57Fe from microscopic nuclear and atomic calculations

2001-01-15

arxiv.org/abs/nucl-th/0101026v1

Phys.Rev.Lett. 87 (2001) 062701

Physics

Nuclear Physics

Nuclear Theory

4 pages, submitted to Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.87.062701

The nuclear quadrupole moment of the I=3/2- excited nuclear state of 57Fe at 14.41 keV, important in M\"ossbauer spectroscopy, is determined from the large-scale nuclear shell-model calculations for 57Fe and also from the electronic ab initio and density functional theory calculations including solid state and electron correlation effects for the molecules Fe(CO)_5 and Fe(C_5 H_5)_2. Both independent methods yield very similar results. The recommended value is 0.16(1) eb. The NQM of the isomeric 10+ in 54Fe has also been calculated. The new value (0.5 eb), consistent with the perturbed angular distribution data, is by a factor of two larger than the currently recommended value.

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