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

L. Ladino; J. W. Brill

doi:10.1016/j.physb.2008.11.044

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

L. Ladino, J. W. Brill

Physics And Astronomy

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

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 (V_crit / V_on - 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 language	English
Pages (from-to)	422-425
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	404
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physb.2008.11.044
State	Published - 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.

Keywords

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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10.1016/j.physb.2008.11.044

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title = "Electro-optic search for threshold divergence of the CDW diffusion constant in blue bronze",

abstract = "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.",

keywords = "Charge-density-wave, Critical effects, Diffusion constant, Electro-optic",

author = "L. Ladino and Brill, {J. W.}",

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.",

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language = "English",

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T1 - Electro-optic search for threshold divergence of the CDW diffusion constant in blue bronze

AU - Ladino, L.

AU - Brill, J. W.

N1 - 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.

PY - 2009

Y1 - 2009

N2 - 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.

AB - 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.

KW - Charge-density-wave

KW - Critical effects

KW - Diffusion constant

KW - Electro-optic

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EP - 425

IS - 3-4

ER -

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

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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