Optical properties of Sr2Y(Ru1−xCux)O6
| Autor: | J. L. Her, F. Z. Chien, Hsiang Lin Liu, W. F. Hsueh, Mau-Kuen Wu, Cheng-Chung Chi, Chia Chun Chen, S. M. Rao |
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| Rok vydání: | 2006 |
| Předmět: |
Superconductivity
Condensed matter physics Chemistry Phonon Doping Insulator (electricity) General Chemistry Condensed Matter Physics Optical conductivity Condensed Matter::Materials Science symbols.namesake Condensed Matter::Superconductivity Molecular vibration symbols Condensed Matter::Strongly Correlated Electrons General Materials Science Raman spectroscopy Softening |
| Zdroj: | Journal of Physics and Chemistry of Solids. 67:302-304 |
| ISSN: | 0022-3697 |
| DOI: | 10.1016/j.jpcs.2005.10.074 |
| Popis: | We present optical reflectance and Raman-scattering studies of double perovskite structure Sr2Y(Ru1−xCux)O6 systems as a function of temperature and doping. The optical conductivities of all doping samples studied have the character of an insulator at low frequencies, showing only optical phonons in the far-infrared. As the temperature is lowered, the A1 g apical oxygen phonon mode exhibits a noticeable softening below magnetic ordered and superconducting transitions, indicative of a strong lattice–spin-charge coupling in these materials. |
| Databáze: | OpenAIRE |
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