Infrared and Raman spectra of M2Cu2O5 (M=Y,Ho) |
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| Authors: | Z. V. Popović C. Thomsen M. Cardona R. Liu G. Stanišić W. König |
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| Affiliation: | (1) Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-7000 Stuttgart 80, Federal Republic of Germany;(2) Institute of Physics, P.O. Box 57, YU-11000 Belgrade, Yugoslavia |
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| Abstract: | We report both Raman and infrared reflectivity spectra of M2Cu2O5 (M=Y, Ho) at room temperature in the spectral range of 30–1000 cm–1.37 (31) ir and 18 (15) Raman active modes of Y2Cu2O5 (Ho2Cu2O5) are observed. A factor group analysis has been performed to identify the symmetries of the observed modes. Comparing the vibrational spectra of these compounds we conclude that the phonons above 300 cm–1 originate from the Cu–O vibrations and those under 300 cm–1 from M–O vibrations.Alexander von Humboldt Foundation fellow |
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