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Infrared transmission study of crystal-field excitations in Al- and Sr-doped Pr.sub.1 + x./sub.Ba.sub.2 - x./sub.Cu.sub.3./sub.O.sub.6./sub

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    0100096 - FZU-D 20040074 RIV US eng J - Journal Article
    Barba, D. - Jandl, S. - Nekvasil, Vladimír - Maryško, Miroslav - Jurek, Karel - Diviš, M. - Wolf, T.
    Infrared transmission study of crystal-field excitations in Al- and Sr-doped Pr1 + xBa2 - xCu3O6
    [Studium excitací krystalového pole měřením transmisních spekter v infračervené oblasti v Al- a Sr-dopovaných Pr1 + xBa2 - xCu3O6.]
    Physical Review. B. Roč. 69, č. 2 (2004), 024528/1-024528/8. ISSN 0163-1829
    R&D Projects: GA ČR GA202/03/0552
    Institutional research plan: CEZ:AV0Z1010914
    Keywords : cuprate superconductors * infrared spectra * crystal field * exchange interaction
    Subject RIV: BM - Solid Matter Physics ; Magnetism
    Impact factor: 3.075, year: 2004

    Absorption bands corresponding to the crystal-field excitation in Pr1.05Ba1.88Cu2.39Al0.34O6 + y and Pr0.93Ba1.93Sr0.13Mg0.05Cu2.74O6 + y have been observed by Raman scattering and infrared transmission spectroscopy. This analysis confirmes that the phenomenological crystal-field parameters follow the trends reported in NdBa2Cu3O6 and SmBa2Cu3O6

    Měřením Ramanova rozptylu a transmisních spekter v infračervené oblasti byla identifikována absorpční spektra krystalopolních excitací v Pr1.05Ba1.88Cu2.39Al0.34O6 + y a Pr0.93Ba1.93Sr0.13Mg0.05Cu2.74O6 + y. Analýza spekter ukazuje, ze hodnoty fenomenologických parametrů krystalového pole sledují trendy zjištěné u NdBa2Cu3O6 a SmBa2Cu3O6
    Permanent Link: http://hdl.handle.net/11104/0007602

     
     
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