The optical properties of bulk AuCu3-type ordered superconducting binary compounds ScGa3 and LuGa3 have been experimentally investigated for the first time in the wide spectral range and explained in terms of the band structure. First-principles calculations of electronic densities of states and optical conductivities are performed within the framework of LSDA+U method using the LMTO-ASA software package. The measured dielectric functions spectra for both materials exhibit a strong absorption region above ∼ 1eV, which are in a reasonable agreement with the calculated metal-like energy structures of compounds. Features of quantum light absorption are discussed on the basis of a comparative analysis of experimental and theoretical spectra of interband optical conductivity. Plasma and relaxation frequencies of conduction electrons are determined.
Язык оригиналаАнглийский
Номер статьи2450117
ЖурналModern Physics Letters B
Номер выпуска19
СостояниеОпубликовано - 10 июл. 2024

    Предметные области ASJC Scopus

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

    Предметные области WoS

  • Физика, Прикладная
  • Физика, Конденсированных сред
  • Физика, Математическая

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