Dielectric response of the charge-density wave in K0.3MoO3

R. J. Cava, R. M. Fleming, P. Littlewood, E. A. Rietman, Lynn Schneemeyer, R. G. Dunn

Research output: Contribution to journalArticleResearchpeer-review

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Abstract

We have characterized the dielectric relaxation of the charge-density wave (CDW) in K0.3MoO3 at temperatures between 60 and 101 K through measurement of the complex conductivity between 5 Hz and 13 MHz. The dielectric response is described well by a general expression which allows for a distribution of relaxation times which is not symmetric about the mean relaxation time. Between 60 and 101 K, relaxation times decrease in a manner characteristic of Arrhenius behavior. The dielectric response of the CDW for dc biases below the threshold field for nonlinear conductivity is suggestive of critical behavior. Above the threshold field, the ac conductivity shows structure at frequencies equal to the "washboard frequency" of the sliding CDW.

Original languageEnglish
Pages (from-to)3228-3239
Number of pages12
JournalPhysical Review B
Volume30
Issue number6
DOIs
StatePublished - 1 Jan 1984

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Charge density waves
Relaxation time
relaxation time
conductivity
thresholds
Dielectric relaxation
sliding
Temperature
temperature

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Cava, R. J., Fleming, R. M., Littlewood, P., Rietman, E. A., Schneemeyer, L., & Dunn, R. G. (1984). Dielectric response of the charge-density wave in K0.3MoO3. Physical Review B, 30(6), 3228-3239. https://doi.org/10.1103/PhysRevB.30.3228
Cava, R. J. ; Fleming, R. M. ; Littlewood, P. ; Rietman, E. A. ; Schneemeyer, Lynn ; Dunn, R. G. / Dielectric response of the charge-density wave in K0.3MoO3. In: Physical Review B. 1984 ; Vol. 30, No. 6. pp. 3228-3239.
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Cava, RJ, Fleming, RM, Littlewood, P, Rietman, EA, Schneemeyer, L & Dunn, RG 1984, 'Dielectric response of the charge-density wave in K0.3MoO3', Physical Review B, vol. 30, no. 6, pp. 3228-3239. https://doi.org/10.1103/PhysRevB.30.3228

Dielectric response of the charge-density wave in K0.3MoO3. / Cava, R. J.; Fleming, R. M.; Littlewood, P.; Rietman, E. A.; Schneemeyer, Lynn; Dunn, R. G.

In: Physical Review B, Vol. 30, No. 6, 01.01.1984, p. 3228-3239.

Research output: Contribution to journalArticleResearchpeer-review

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Cava RJ, Fleming RM, Littlewood P, Rietman EA, Schneemeyer L, Dunn RG. Dielectric response of the charge-density wave in K0.3MoO3. Physical Review B. 1984 Jan 1;30(6):3228-3239. https://doi.org/10.1103/PhysRevB.30.3228