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Magnetically induced transition in the spectrum of Sr iv

Li, M. C. ; Wang, K. ; Brage, T. LU and Hutton, R. (2021) In Physical Review A 103(3).
Abstract

Observations and studies of what we call magnetic induced transitions have arguably re-opened a whole new area of atomic spectroscopy. There are transitions from upper levels that are sensitive to externally applied magnetic fields, such as those in tokamaks and the solar corona. So far only two types of ionic systems have been confirmed as leading to magnetic induced transitions, namely Ne-like Ar and Fe, and Cl-like Fe. We here propose a homologous system to Cl-like ions, namely Br-like ions, as a new candidate. These transitions are fed by close degeneracy between levels of relative short and long lifetimes, respectively. A similar close degeneracy as in Cl-like Fe is present in Br-like Sr and will give rise to an observable magnetic... (More)

Observations and studies of what we call magnetic induced transitions have arguably re-opened a whole new area of atomic spectroscopy. There are transitions from upper levels that are sensitive to externally applied magnetic fields, such as those in tokamaks and the solar corona. So far only two types of ionic systems have been confirmed as leading to magnetic induced transitions, namely Ne-like Ar and Fe, and Cl-like Fe. We here propose a homologous system to Cl-like ions, namely Br-like ions, as a new candidate. These transitions are fed by close degeneracy between levels of relative short and long lifetimes, respectively. A similar close degeneracy as in Cl-like Fe is present in Br-like Sr and will give rise to an observable magnetic induced transition. We have predicted the magnetic induced transition rate for the 4D7/2 level in Sr iv as a function of magnetic field strengths.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review A
volume
103
issue
3
article number
032831
publisher
American Physical Society
external identifiers
  • scopus:85103613142
ISSN
2469-9926
DOI
10.1103/PhysRevA.103.032831
language
English
LU publication?
yes
id
fb851d1a-dd42-42ad-9feb-5525863d2e98
date added to LUP
2021-04-13 10:33:47
date last changed
2022-04-27 01:25:37
@article{fb851d1a-dd42-42ad-9feb-5525863d2e98,
  abstract     = {{<p>Observations and studies of what we call magnetic induced transitions have arguably re-opened a whole new area of atomic spectroscopy. There are transitions from upper levels that are sensitive to externally applied magnetic fields, such as those in tokamaks and the solar corona. So far only two types of ionic systems have been confirmed as leading to magnetic induced transitions, namely Ne-like Ar and Fe, and Cl-like Fe. We here propose a homologous system to Cl-like ions, namely Br-like ions, as a new candidate. These transitions are fed by close degeneracy between levels of relative short and long lifetimes, respectively. A similar close degeneracy as in Cl-like Fe is present in Br-like Sr and will give rise to an observable magnetic induced transition. We have predicted the magnetic induced transition rate for the 4D7/2 level in Sr iv as a function of magnetic field strengths. </p>}},
  author       = {{Li, M. C. and Wang, K. and Brage, T. and Hutton, R.}},
  issn         = {{2469-9926}},
  language     = {{eng}},
  number       = {{3}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review A}},
  title        = {{Magnetically induced transition in the spectrum of Sr iv}},
  url          = {{http://dx.doi.org/10.1103/PhysRevA.103.032831}},
  doi          = {{10.1103/PhysRevA.103.032831}},
  volume       = {{103}},
  year         = {{2021}},
}