Electro-optic search for threshold divergence of the CDW diffusion constant in blue bronze

L. Ladino, J. W. Brill

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We have used the electro-optic response to search for critical divergence of the charge-density-wave (CDW) diffusion constant in blue bronze at the CDW depinning onset. No divergence is observed, setting (Vcrit / Von - 1) < 0.06 as a limit for the critical voltage. The measured diffusion constant implies an elastic constant consistent with the measured phason velocity, suggesting that CDW polarization involves gradual, rather than soliton-like, changes in phase.

Original languageEnglish
Pages (from-to)422-425
Number of pages4
JournalPhysica B: Condensed Matter
Issue number3-4
StatePublished - 2009

Bibliographical note

Funding Information:
We thank R. Thorne for providing crystals, M. Uddin, M. Freamat, D. Dominko, and E. Bittle for supporting measurements, and O. Narayan for helpful comments. This work was supported by the U.S. National Science Foundation, Grant #0400938.


  • Charge-density-wave
  • Critical effects
  • Diffusion constant
  • Electro-optic

ASJC Scopus subject areas

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


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