Infrared and Raman spectra and external mode calculations for M2Cu2O5 semiconductors (M = In, Sc, Y and lanthanides from Tb to Lu)
作者： J. Hanuza , M. Andruszkiewicz , K. Hermanowicz , R. Horyń , J. Klamut
DOI: 10.1016/0584-8539(93)80066-J
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摘要: Abstract The room temperature FTIR transmission and Raman scattering spectra of M 2 Cu O 5 (M = In, Sc, Y, TbLu) semiconductors in the 30–700 cm −1 range are examined. A factor group analysis normal coordinate calculations have been performed to identify external modes. Urey—Bradley Force Field model potential energy distribution were applied phonon calculations. Y/Er Y/Gd exchange effects studied analysed terms 3+ ion translation energy.
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