Affordable Access

Publisher Website

Carrier dynamics and infrared-active phonons inc-axis oriented RuSr2GdCu2O8film

Authors
Journal
Physica C Superconductivity
0921-4534
Publisher
Elsevier
Publication Date
Volume
361
Issue
4
Identifiers
DOI: 10.1016/s0921-4534(01)00607-4
Keywords
  • Rusr2Gdcu2O8
  • Carrier Dynamics
  • Infrared Phonons
  • Lattice Dynamics

Abstract

Abstract The conductivity spectra of c-axis oriented thin RuSr 2GdCu 2O 8 film on SrTiO 3 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.

There are no comments yet on this publication. Be the first to share your thoughts.