Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

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

In English

Författare

  • Weijie Du
  • Martin Andersson
  • Ke Yao
  • Tomas Brage
  • Roger Hutton
  • Yaming Zou

Summary, in English

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.

Publiceringsår

2013

Språk

Engelska

Publikation/Tidskrift/Serie

Journal of Physics B: Atomic, Molecular and Optical Physics

Volym

46

Issue

14

Dokumenttyp

Artikel i tidskrift

Förlag

IOP Publishing

Ämne

  • Condensed Matter Physics

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0953-4075