Development of a tunnelling model of charge-density-wve depinning

John Bardeen, J. W. Lyding, W. G. Lyons, J. H. Miller, R. E. Thorne, J. R. Tucker

Research output: Contribution to journalArticle

Abstract

The tunneling model of transport by charge-density waves in quasi-one-dimensional metals has been developed from a close interaction between theory and experiment. Depinning by coherent Zener tunneling of electrons in the CDW condensate in many parallel chains, first applied to NbSe3,and TaS3, was suggested by the field dependence of the dc current. In 1981, a program initiated at Illinois to study detection, mixing and harmonic generation was successful in showing that photon-assisted tunneling theory accounts for a wide range phenomena. The only inputs are a scaling parameter and the dc I-V characteristic. Recent measurements by Grüner, Reagor baret al. of θ{symbol}(ω) in the range 1-100 Ghz suggested a modification to account for CDW metals with high pinning frequencies, such as (TaSe4)2I and the alloys Ta1-xNbxS3. The dc and low-frequency ac response can be derived from parameters measured at high frequencies. The theory accounts for the "narrow band" noise that accompanies dc current flow and the subharmonic steps of constant current in the dc I-V characteristic measured in the presence of an applied ac.

Original languageEnglish (US)
Pages (from-to)1-6
Number of pages6
JournalSynthetic Metals
Volume19
Issue number1-3
DOIs
StatePublished - Mar 1987

Fingerprint

Charge density
Metals
Charge density waves
Harmonic generation
Frequency response
Photons
metals
frequency response
condensates
narrowband
Electrons
harmonic generations
low frequencies
scaling
Experiments
photons
electrons
interactions

ASJC Scopus subject areas

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

Cite this

Bardeen, J., Lyding, J. W., Lyons, W. G., Miller, J. H., Thorne, R. E., & Tucker, J. R. (1987). Development of a tunnelling model of charge-density-wve depinning. Synthetic Metals, 19(1-3), 1-6. https://doi.org/10.1016/0379-6779(87)90322-5

Development of a tunnelling model of charge-density-wve depinning. / Bardeen, John; Lyding, J. W.; Lyons, W. G.; Miller, J. H.; Thorne, R. E.; Tucker, J. R.

In: Synthetic Metals, Vol. 19, No. 1-3, 03.1987, p. 1-6.

Research output: Contribution to journalArticle

Bardeen, J, Lyding, JW, Lyons, WG, Miller, JH, Thorne, RE & Tucker, JR 1987, 'Development of a tunnelling model of charge-density-wve depinning', Synthetic Metals, vol. 19, no. 1-3, pp. 1-6. https://doi.org/10.1016/0379-6779(87)90322-5
Bardeen, John ; Lyding, J. W. ; Lyons, W. G. ; Miller, J. H. ; Thorne, R. E. ; Tucker, J. R. / Development of a tunnelling model of charge-density-wve depinning. In: Synthetic Metals. 1987 ; Vol. 19, No. 1-3. pp. 1-6.
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