Effect of impurity pinning on conduction and specific heat in the Luttinger liquid

S. N. Artemenko, S. V. Remizov, D. S. Shapiro, R. R. Vakhitov

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We study theoretically two effects related to impurity depinning that are common for 1D Luttinger liquid (LL) and linear-chain charge-density wave (CDW) conductors. First, we consider the electron transport through a single impurity in a 1D conducting channel and study a new regime of conduction related to LL sliding at voltage above a threshold one. The DC current in this regime is accompanied by oscillations with frequency f = I / e. This resembles the CDW depinning in linear-chain conductors, the Josephson effect, and the Coulomb blockade. Second, we found that strong pinning of the LL by impurities leads to a magnetic field dependence of the low-temperature specific heat similar to that observed experimentally in CDW compounds. We interpret this in favor of possibility of formation of the LL in linear-chain compounds.

Original languageEnglish
Pages (from-to)447-451
Number of pages5
JournalPhysica B: Condensed Matter
Volume404
Issue number3-4
DOIs
Publication statusPublished - 13 Jan 2009

Fingerprint

Charge density waves
conductive heat transfer
Specific heat
specific heat
Impurities
impurities
Liquids
liquids
conductors
Coulomb blockade
conduction
Josephson effect
sliding
direct current
Magnetic fields
oscillations
thresholds
Electric potential
electric potential
magnetic fields

Keywords

  • Conduction
  • Heat capacity
  • Impurity
  • Luttinger liquid

ASJC Scopus subject areas

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

Cite this

Effect of impurity pinning on conduction and specific heat in the Luttinger liquid. / Artemenko, S. N.; Remizov, S. V.; Shapiro, D. S.; Vakhitov, R. R.

In: Physica B: Condensed Matter, Vol. 404, No. 3-4, 13.01.2009, p. 447-451.

Research output: Contribution to journalArticle

Artemenko, S. N. ; Remizov, S. V. ; Shapiro, D. S. ; Vakhitov, R. R. / Effect of impurity pinning on conduction and specific heat in the Luttinger liquid. In: Physica B: Condensed Matter. 2009 ; Vol. 404, No. 3-4. pp. 447-451.
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