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          Institute: Fritz-Haber-Institut     Collection: Molecular Physics     Display Documents

ID: 299463.0, Fritz-Haber-Institut / Molecular Physics
The Zeeman tuning of the A6Σ+ – X6Σ+ transition of chromium monohydride
Authors:Chen, Jinhai; Bakker, Joost M.; Peters, Achim; Stoll, Michael; Meijer, Gerard; Steimle, Timothy C.
Date of Publication (YYYY-MM-DD):2007
Title of Journal:Physical Chemistry Chemical Physics
Journal Abbrev.:PCCP
Start Page:949
End Page:957
Copyright:Royal Society of Chemistry 2007
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:The magnetic tuning of the low-rotational levels of the A6Σ+ (v = 1 and 0) states of chromium monohydride, 52CrH, have been experimentally investigated using optical spectroscopy of the (0, 0) and (1, 0) bands of the A6Σ+ – X6Σ+ transition. The tuning of the numerous low-rotational lines in the A6Σ+ – X6Σ+ (0, 0) band can be accurately modeled using a single set of g-factors (gS and g?) which are close to the expected values. In contrast, the g-factors for the A6Σ+ (v = 1) state required to model the magnetic tuning of low-rotational lines in the A6Σ+ – X6Σ+ (1, 0) band are strongly dependent upon rotational and fine structure component and the determined effective values for gS deviate significantly from 2.002. Interpretation of the quantum level variation of gS is presented. The magnetic hyperfine structure of the (0, 0) and (1, 0) bands of the A6Σ+ – X6Σ+ transition is analyzed to produce proton Fermi contact, bF and dipolar, c, magnetic hyperfine parameters of 19(1) MHz and 34(5) MHz for the A6Σ+ (v = 0) state and 21(2) MHz and 30(7) MHz for the A6Σ+ (v = 1) state.
External Publication Status:published
Document Type:Article
Communicated by:Gerard Meijer
Affiliations:Fritz-Haber-Institut/Molecular Physics
External Affiliations:Department of Chemistry and Biochemistry, Arizona State University,
Tempe, AZ, USA 85287-1604;
Humboldt Universität zu Berlin, Institut für Physik, Hausvogteiplatz 5-7,
10117 Berlin, Germany
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