Electromodulated infrared transmission spectrum near the CDW gap edge in blue bronze

B. M. Emerling, M. E. Itkis, J. W. Brill

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


We compare the changes in the transmission (τ) spectra of blue bronze caused by changing temperature (ΔτT) and by polarizing the charge-density-wave (CDW) with an electric field near threshold (Δτv), for photon energies between 800 and 1200 cm-1. Unlike at lower energies, the two spectra differ qualitatively in this spectral region, near the edge of the CDW gap. While temperature mainly affects phonon damping, CDW polarization shifts phonon energies. Both ΔτV/τ and ΔτT/τ are expected to change sign for energies above the gap, but this occurs much more gradually (as a function of energy) in the electromodulated spectrum.

Original languageEnglish
Pages (from-to)2598-2599
Number of pages2
JournalSynthetic Metals
Issue number1-3
StatePublished - Jun 24 1999
EventProceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier
Duration: Jul 12 1998Jul 18 1998

Bibliographical note

Funding Information:
We thank R.E. Thome for providing crystals. This research was supported by the U.S. National Science Foundation, grants DMR-9300507 and EPS-9452895.

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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