Abstract
We report an inelastic light scattering study of double perovskite structure Sr2Y(Ru1-xCux)O6 systems as a function of temperature and doping (x = 0.0, 0.05, and 0.1). As the temperature is lowered, for x = 0.0, the 767 cm-1 A1g apical oxygen phonon mode exhibits a softening and an enhancement of the linewidth in the antiferromagnetic phase. Similar anomalies are also observed for x = 0.1 when the superconducting gap opens. This suggests that a strong lattice-spin-charge coupling plays an important role in the magnetic and superconducting properties observed in these materials.
Original language | English |
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Pages (from-to) | 319-320 |
Number of pages | 2 |
Journal | Physica C: Superconductivity and its applications |
Volume | 388-389 |
DOIs | |
Publication status | Published - 2003 May |
Event | proceedings of the 23rd international conference on low temper - Hiroshima, Japan Duration: 2002 Aug 20 → 2002 Aug 27 |
Keywords
- Infrared and Raman spectra
- Optical properties of bulk materials and thin films
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering