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  • 1
    Electronic Resource
    Electronic Resource
    EPR and optical spectroscopy of Cr3+ ions in Y3Ga5O12 crystalline thin films (1992)
    Springer
    Applied physics 54 (1992), S. 470-473 
    Details
    ISSN: 1432-0630
    Keywords: 71.70 ; 42.55
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The emission spectrum of Cr3+ in Y3Ga5O12 crystalline thin films at 10K is composed of the sharp R 1-line, its phonon sideband, and the very weak broadband. The lineshape of R 1-line at the peak wavelength of 689.8 nm cannot be fitted to a single Gaussian. This suggests that there exist several different Cr3+ sites in the thin film. This fact is confirmed by lifetime measurements; the radiative decay of the fluorescence is decomposed into multiple-exponential curves. The dominant component (2.8 ms) of the decay curve for the broadband emission is equal to those (2.4 ms) for R 1-line and its phonon sidebands. This result is discussed in terms of a tunneling model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00324174
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  • 2
    Electronic Resource
    Electronic Resource
    Disorder and the shape of the R-lines in Cr3+-doped garnets (1990)
    Springer
    Applied physics 50 (1990), S. 565-572 
    Details
    ISSN: 1432-0630
    Keywords: 78.40 ; 78.55 ; 42.55
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract This paper describes measurements of the R-line emission from Cr3+ ions in Y3Ga5O12, Gd3Sc2Ga3O12, and Gd3Sc2Al3O12. Discrete splittings of the lines are interpreted as due to disorder on the cation sublattices. Assuming statistical distributions of the cations on the different cation sublattices enables estimates to be made of the degree of non-stoichiometry in the crystals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00323448
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    Paper (German National Licenses)
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