摘要
We present optical reflectance and Raman-scattering studies of double perovskite structure Sr2Y(Ru1-xCux)O 6 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.
原文 | 英語 |
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頁(從 - 到) | 302-304 |
頁數 | 3 |
期刊 | Journal of Physics and Chemistry of Solids |
卷 | 67 |
發行號 | 1-3 |
DOIs | |
出版狀態 | 已發佈 - 2006 1月 |
ASJC Scopus subject areas
- 一般化學
- 一般材料科學
- 凝聚態物理學