INVESTIGADORES
DARRIBA German Nicolas
artículos
Título:
Nuclear quadrupole moment of the 99Tc ground state
Autor/es:
L. ERRICO; G. DARRIBA; M. RENTER√ćA; Z. TANG; H. EMMERICH; S. COTTENIER
Revista:
PHYSICAL REVIEW B - CONDENSED MATTER AND MATERIALS PHYSICS
Editorial:
APS
Referencias:
Año: 2008 vol. 77 p. 195118 - 195118
ISSN:
0163-1829
Resumen:
By combining first-principles calculations and existing nuclear magnetic resonance NMR experiments, we determine the quadrupole moment of the 9/2+ ground state of 99Tc to be (−)0.14 (3)b. This confirms the value of −0.129 (20)b, which is currently believed to be the most reliable experimental determination, and disagrees with two earlier experimental values. We supply ab initio calculated electric-field gradients for Tc in YTc2 and ZrTc2. If this calculated information would be combined with yet to be performed Tc-NMR experiments in these compounds, the error bar on the 99Tc ground state quadrupole moment could be further reduced.