TY - JOUR
T1 - Inelastic light scattering studies of superconducting Ru-based double perovskites
AU - Liu, Hsiang Lin
AU - Chen, Chang Chung
AU - Chien, Fan Z.
AU - Wu, Mow Kuen
N1 - Funding Information:
This work was supported by National Science Council of Republic of China under Grant No. NSC 90-2112-M-003-017.
PY - 2003/5
Y1 - 2003/5
N2 - 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.
AB - 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.
KW - Infrared and Raman spectra
KW - Optical properties of bulk materials and thin films
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U2 - 10.1016/S0921-4534(02)02471-1
DO - 10.1016/S0921-4534(02)02471-1
M3 - Conference article
AN - SCOPUS:17144454838
SN - 0921-4534
VL - 388-389
SP - 319
EP - 320
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
T2 - proceedings of the 23rd international conference on low temper
Y2 - 20 August 2002 through 27 August 2002
ER -