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Hyperfine interactions in the A 3Φ4 and X3Φ4 states of iridium monofluoride, IrF
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10.1063/1.3609100
/content/aip/journal/jcp/135/3/10.1063/1.3609100
http://aip.metastore.ingenta.com/content/aip/journal/jcp/135/3/10.1063/1.3609100

Figures

Image of FIG. 1.
FIG. 1.

Excitation spectra showing hyperfine structure in the first lines, R(4), Q(4), P(5) of the A 3Φ4X 3Φ4 (1, 0) band of 191IrF (bottom) and 193IrF (top).

Image of FIG. 2.
FIG. 2.

Plot of the quadrupole hyperfine energy function f(J, I 1, F 1, Ω) (see Eq. (6)) showing how the quadrupole hyperfine energy of each of the four hyperfine components varies with rotation for an electronic state with Ω = 4 and I = 3/2.

Image of FIG. 3.
FIG. 3.

Comparison of (a) observed and (b) calculated spectra of the A 3Φ4X 3Φ4 (1, 0) Q(6) transition of 193IrF. Spectrum (c) shows the calculated spectrum with purely magnetic hyperfine structure and (b) shows the effect of adding the Ir quadrupole term to the hyperfine structure. The calculations for Figs. 3 and 4 used a Lorentz profile with FWHM of 0.001 cm−1, corresponding to the resolution of the ASU experiments. The assignments (F 1 , F 1 : F, F) of the four labelled satellite lines are a (4.5, 4.5: 4, 5), b (4.5, 5.5: 5, 6), c (6.5, 5.5: 7,6), d (7.5, 6.5: 8, 7).

Image of FIG. 4.
FIG. 4.

Comparison of (a) observed and (b) calculated spectra of the A 3Φ4X 3Φ4 (1, 0) Q(7) transition of 193IrF. Spectrum (c) shows the calculated spectrum with purely magnetic hyperfine structure and (b) shows the effect of adding the Ir quadrupole term to the hyperfine structure. Note the change in direction of the quadrupole shift as compared with the Q(6) transition in Fig. 3. The assignments (F 1 , F 1 : F, F) of the four labelled satellite lines are a (5.5, 5.5: 5, 6), b (6.5, 6.5: 6, 7), c (8.5, 7.5: 8, 7), d (8.5, 7.5: 9, 8).

Image of FIG. 5.
FIG. 5.

Comparison of the observed spectrum (bottom) of the P(15) transition of the A 3Φ4X 3Φ4 (1, 0) transition of 193IrF and 191IrF with the calculated spectrum (top) using a Gaussian profile with a FWHM of 0.005 cm−1 corresponding to the resolution of the UNB experiments.

Tables

Generic image for table
Table I.

Spectroscopic parameters determined from the analysis of the A 3Φ4 - X 3Φ4 (1,0) band of 193IrF and 191IrF.

Generic image for table
Table II.

Magnetic hyperfine parameters of IrF in terms of Ir and F atomic hyperfine parameters (MHz).

Generic image for table
Table III.

Numerical values of hyperfine parameters (in MHz) for IrF.

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/content/aip/journal/jcp/135/3/10.1063/1.3609100
2011-07-20
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Hyperfine interactions in the A3Φ4 and X  3Φ4 states of iridium monofluoride, IrF
http://aip.metastore.ingenta.com/content/aip/journal/jcp/135/3/10.1063/1.3609100
10.1063/1.3609100
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