Carrier dynamics and infrared-active phonons in c-axis oriented RuSr2GdCu2O8 film

A. P. Litvinchuk, S. Y. Chen, M. N. Iliev, C. L. Chen, C. W. Chu, V. N. Popov

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The conductivity spectra of c-axis oriented thin RuSr2GdCu2O8 film on SrTiO3 substrate, prepared by pulsed-laser deposition, are obtained from the analysis of the reflectivity spectra over broad frequency range and temperatures between 10 and 300 K. The free charge carriers are found to be strongly overdamped with their scattering rate (1.0 eV at room temperature) exceeding the plasma frequency (0.55 eV). Four phonon lines are identified in the experimental spectra and assigned to the specific oxygen related in-plane polarized vibrations based on the comparison with the results of a lattice dynamics shell model calculations.

Original languageEnglish
Pages (from-to)234-238
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume361
Issue number4
DOIs
Publication statusPublished - 2001 Oct 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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