IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
Ab initio determination of Nuclear-Quadrupole Moments of In isotopes
Autor/es:
LEONARDO A. ERRICO; MARIO RENTERÍA
Revista:
PHYSICAL REVIEW B - CONDENSED MATTER AND MATERIALS PHYSICS
Editorial:
The American Physical Society
Referencias:
Año: 2006 vol. 73 p. 115125 - 1151256
ISSN:
0163-1829
Resumen:
We present here ab initio determinations of the nuclear-quadrupole moment Q of hyperfine-probe-nuclear states of three different In isotopes: the 5 + 192 keV excited state of 114 In (probe for nuclear quadrupole alignment spectroscopy), the 9/ 2 + ground state of 115 In (nuclear magnetic and nuclear quadrupole resonanceprobe), and the 3/ 2 + 659 keV excited state of 117 In (perturbed angular correlations probe). These nuclear-quadrupole moments were determined by comparing experimental nuclear-quadrupole frequencies to the electric-field gradient tensor calculated with high accuracy at In sites in metallic indium within the density functional theory. These ab initio calculations were performed with the full-potential linearized augmented plane wave method. The results obtained for the quadrupole moments of 114 In [Q(114 In) = -0.14(1) b] are in clear discrepancy with those reported in the literature [Q(114 In) = +0.16(6) b and +0.739(12) b]. For 115 In and117 In our results are in excellent agreement with the literature and in the last case Q(117 In) is determined with more precision. In the case of Q(117 In), its sign cannot be determined because standard gamma-gama perturbed angular correlations experiments are not sensitive to the sign of the nuclear-quadrupole frequency.Los números de página correctos son 115125-1 al 115125-6 (El sistema no permite entrar caracteres alfanuméricos).