Inelastic light scattering studies of superconducting Ru-based double perovskites

Hsiang Lin Liu, Chang Chung Chen, Fan Z. Chien, Mow Kuen Wu

Research output: Contribution to journalConference article

2 Citations (Scopus)

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 languageEnglish
Pages (from-to)319-320
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume388-389
DOIs
Publication statusPublished - 2003 May 1
Eventproceedings of the 23rd international conference on low temper - Hiroshima, Japan
Duration: 2002 Aug 202002 Aug 27

Fingerprint

Inelastic scattering
perovskites
Light scattering
inelastic scattering
light scattering
Linewidth
softening
Perovskite
Doping (additives)
anomalies
Oxygen
magnetic properties
Temperature
temperature
augmentation
oxygen
perovskite

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

Cite this

Inelastic light scattering studies of superconducting Ru-based double perovskites. / Liu, Hsiang Lin; Chen, Chang Chung; Chien, Fan Z.; Wu, Mow Kuen.

In: Physica C: Superconductivity and its applications, Vol. 388-389, 01.05.2003, p. 319-320.

Research output: Contribution to journalConference article

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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.

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