Ab initio determination of the nuclear quadrupole moments of {sup 114}In, {sup 115}In, and {sup 117}In
- Departamento de Fisica-IFLP (CONICET), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 67, 1900 La Plata (Argentina)
We present here ab initio determinations of the nuclear-quadrupole moment Q of hyperfine-probe-nuclear states of three different In isotopes: the 5{sup +} 192 keV excited state of {sup 114}In (probe for nuclear quadrupole alignment spectroscopy), the 9/2{sup +} ground state of {sup 115}In (nuclear magnetic and nuclear quadrupole resonance probe), and the 3/2{sup +} 659 keV excited state of {sup 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 {sup 114}In [Q({sup 114}In)=-0.14(1) b] are in clear discrepancy with those reported in the literature [Q({sup 114}In)=+0.16(6) b and +0.739(12) b]. For {sup 115}In and {sup 117}In our results are in excellent agreement with the literature and in the last case Q({sup 117}In) is determined with more precision. In the case of Q({sup 117}In), its sign cannot be determined because standard {gamma}-{gamma} perturbed angular correlations experiments are not sensitive to the sign of the nuclear-quadrupole frequency.
- OSTI ID:
- 20788004
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 73, Issue 11; Other Information: DOI: 10.1103/PhysRevB.73.115125; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACCURACY
DENSITY FUNCTIONAL METHOD
ELECTRIC FIELDS
EXCITED STATES
GROUND STATES
INDIUM 114
INDIUM 115
INDIUM 117
KEV RANGE
NUCLEAR QUADRUPOLE RESONANCE
PERTURBED ANGULAR CORRELATION
POTENTIALS
PROBES
QUADRUPOLE MOMENTS
QUADRUPOLES
SPECTROSCOPY
TENSORS