Low-temperature conductivity of quasi-one-dimensional conductors: Luttinger liquid stabilized by impurities

S. N. Artemenko, S. V. Remizov

Результат исследований: Материалы для журналаСтатья

23 Цитирования (Scopus)

Аннотация

A new non-Fermi-liquid state of quasi-one-dimensional conductors is suggested in which electronic system exists in a form of collection of bounded Luttinger liquids stabilized by impurities. This state is shown to be stable towards interchain electron hopping at low temperatures. Electronic spectrum of the system contains zero modes and collective excitations of the bounded Luttinger liquids in the segments between impurities. Zero modes give rise to randomly distributed localized electronic levels, and long-range interaction generates the Coulomb gap in the density of states at the Fermi energy. Mechanism of conductivity at low temperatures is phonon-assisted hopping via zero-mode states. At higher voltages the excitations of Luttinger liquid are involved in electron transport, and conductivity obeys power-law dependence on voltage. The results provide a qualitative explanation for recent experimental data for NbSe3 and TaS3 crystals.

Язык оригиналаАнглийский
Номер статьи125118
ЖурналPhysical Review B - Condensed Matter and Materials Physics
Том72
Номер выпуска12
DOI
СостояниеОпубликовано - 15 сен 2005

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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