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  • 1
    Electronic Resource
    Electronic Resource
    Measurement of the Stark effect in the Ω=0+−X 1Σ+ transition of YbO (1997)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 107 (1997), S. 3723-3725 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The effect of applying an electric field on the MJ levels of the R(1) feature (υ=17 255.684 cm−1) in the AΩ=0+−X 1Σ+ band system of 174YbO has been examined using the technique of high resolution laser induced fluorescence spectroscopy. The results were used to obtain values for the permanent electric dipole moments, μ, in the X 1Σ+ and AΩ=0+ states of 5.89±0.02 and 5.93±0.04 D, respectively. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.474727
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  • 2
    Electronic Resource
    Electronic Resource
    Rotational analysis and assignment of the 630 nm band system of FeH to the e 6Π–c 6Σ+ transition (1998)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 108 (1998), S. 428-435 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: An investigation of the electronic spectrum of FeH at ∼630 nm using dispersed and undispersed laser induced fluorescence techniques is reported. Eighty lines have been assigned to the (0,0) vibrational band of the e 6Π–c 6Σ+ transition. The transitions can be arranged in three subbands with all six spin components of the c 6Σ+ state accessed. This has allowed the c 6Σ+ state to be fully characterized and provides parity assignments of individual rotational levels for the first time. The energy levels of the c 6Σ+ state conform approximately to a Hund's case (a′) coupling scheme with significant Ω-type doubling (1–10 cm−1). An attempt has been made to simulate the levels using an effective Hamiltonian. Although the simulation failed to reproduce the results to within experimental uncertainty (∼0.007 cm−1), the residuals are sufficiently small to confirm the correctness of the assignments. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.475404
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  • 3
    Electronic Resource
    Electronic Resource
    Rotational analysis and assignment of the green band system of FeH to the e 6Π–a 6Δ transition (1997)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 106 (1997), S. 4823-4831 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The technique of laser excitation spectroscopy at Doppler resolution has been used to record bands in the electronic spectrum of FeH around 532 nm. A number of lines were also recorded at sub-Doppler resolution using intermodulated fluorescence spectroscopy. Dispersed fluorescence studies were used extensively to aid the assignment of a total of 153 lines in this region of the spectrum to either the (0,0) or the (0,1) band of the e 6Π–a 6Δ transition. All the assignments from the excitation spectrum obey the selection rule ΔΩ=−1, giving subbands which involve the lowest three spin components in each state; transitions with ΔΩ=0 were seen only in dispersed fluorescence. Term values have been determined for the three components in both the ground vibrational level of the e 6Π electronic state and the first excited vibrational level of the a 6Δ electronic state (those for the v=0 level of the a 6Δ state have been determined previously). This study provides the first characterization of the spin components and the rotational levels of the e 6Π state of FeH. This state is heavily perturbed and exhibits pronounced lambda-type doubling, making it very difficult to model the energy levels using an effective Hamiltonian approach. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.473531
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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