Coexistence of two components in the optical spectra of CeTiO3.04 in the antiferromagnetic metallic phase

T. Katsufuji, Y. Tokura

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Abstract

The optical spectra of CeTiO3.04, which undergoes a phase transition from a paramagnetic metal to an antiferromagnetic metal, are investigated with changing temperature (T). In the paramagnetic phase, optical conductivity shows a T-dependent feature up to 1 eV, which can be attributed to the T-dependent scattering rate. In the antiferromagnetic phase, on the other hand, optical conductivity reduces its low-energy weight below 0.4 eV, but no gaplike structure appears. A two-component model, where the spectrum is a sum of a metallic and an insulating component, gives a simple explanation for the change of the optical spectra in the antiferromagnetic metallic phase.

Original languageEnglish
Pages (from-to)10797-10801
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume62
Issue number16
DOIs
Publication statusPublished - 2000 Oct 15

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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