Advanced

Lifetimes of the hyperfine levels of 3d(9)4s D-3(3) in high-Z Ni-like ions

Du, Weijie ; Andersson, Martin ; Yao, Ke ; Brage, Tomas LU ; Hutton, Roger and Zou, Yaming (2013) In Journal of Physics B: Atomic, Molecular and Optical Physics 46(14).
Abstract
Based on the multi-configuration Dirac-Hartree-Fock method and using the GRASPVU package, a theoretical investigation was performed to study the lifetimes of hyperfine levels of the first excited level 3d(9)4s D-3(3) in Ni-like ions (Z = 72-79) for all stable isotopes with nuclear spin. Comparisons between hyperfine-induced electric quadrupole transition rates and the pure magnetic octupole transition rates show that the extra electric quadrupole transition channel caused by the nuclear magnetic dipole and electric quadrupole hyperfine interaction is important for most hyperfine levels in each individual ion. Lifetimes of most hyperfine levels are sensitive to this extra decay channel. Extreme cases are found in Ta-181, Re-185 and Re-187,... (More)
Based on the multi-configuration Dirac-Hartree-Fock method and using the GRASPVU package, a theoretical investigation was performed to study the lifetimes of hyperfine levels of the first excited level 3d(9)4s D-3(3) in Ni-like ions (Z = 72-79) for all stable isotopes with nuclear spin. Comparisons between hyperfine-induced electric quadrupole transition rates and the pure magnetic octupole transition rates show that the extra electric quadrupole transition channel caused by the nuclear magnetic dipole and electric quadrupole hyperfine interaction is important for most hyperfine levels in each individual ion. Lifetimes of most hyperfine levels are sensitive to this extra decay channel. Extreme cases are found in Ta-181, Re-185 and Re-187, where lifetimes of some hyperfine levels are shortened by more than an order of magnitude. (Less)
Please use this url to cite or link to this publication:
author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physics B: Atomic, Molecular and Optical Physics
volume
46
issue
14
article number
145001
publisher
IOP Publishing
external identifiers
  • wos:000321444600003
  • scopus:84880267405
ISSN
0953-4075
DOI
10.1088/0953-4075/46/14/145001
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Science) (011040001), Physics, science (011013100)
id
1107e703-50ce-4c04-8850-70c319e45859 (old id 3973353)
date added to LUP
2016-04-01 14:40:13
date last changed
2020-01-12 16:47:10
@article{1107e703-50ce-4c04-8850-70c319e45859,
  abstract     = {Based on the multi-configuration Dirac-Hartree-Fock method and using the GRASPVU package, a theoretical investigation was performed to study the lifetimes of hyperfine levels of the first excited level 3d(9)4s D-3(3) in Ni-like ions (Z = 72-79) for all stable isotopes with nuclear spin. Comparisons between hyperfine-induced electric quadrupole transition rates and the pure magnetic octupole transition rates show that the extra electric quadrupole transition channel caused by the nuclear magnetic dipole and electric quadrupole hyperfine interaction is important for most hyperfine levels in each individual ion. Lifetimes of most hyperfine levels are sensitive to this extra decay channel. Extreme cases are found in Ta-181, Re-185 and Re-187, where lifetimes of some hyperfine levels are shortened by more than an order of magnitude.},
  author       = {Du, Weijie and Andersson, Martin and Yao, Ke and Brage, Tomas and Hutton, Roger and Zou, Yaming},
  issn         = {0953-4075},
  language     = {eng},
  number       = {14},
  publisher    = {IOP Publishing},
  series       = {Journal of Physics B: Atomic, Molecular and Optical Physics},
  title        = {Lifetimes of the hyperfine levels of 3d(9)4s D-3(3) in high-Z Ni-like ions},
  url          = {http://dx.doi.org/10.1088/0953-4075/46/14/145001},
  doi          = {10.1088/0953-4075/46/14/145001},
  volume       = {46},
  year         = {2013},
}