Dynamic properties of the doped Kondo insulator in one dimension

Naokazu Shibata, Hirokazu Tsunetsugu

Research output: Contribution to journalConference articlepeer-review

Abstract

Dynamic correlation functions of the one-dimensional Kondo lattice model are calculated by the finite-T DMRG method. Dynamic spin and charge correlations, S(ω) and N(ω), and quasiparticle density of states ρ(ω) are calculated in the metallic phase for various temperatures and hole densities. Near half-filling, pseudogap grows in S(ω), N(ω) and ρ(ω) below the crossover temperature characterized by the spin gap at half-filling. A sharp peak evolves at ω = 0 at low temperatures in S(ω and N(ω). This may be the evidence of the formation of collective excitations of a Tomonaga-Luttinger liquid in the low-temperature limit.

Original languageEnglish
Pages (from-to)311-312
Number of pages2
JournalPhysica B: Condensed Matter
Volume281-282
DOIs
Publication statusPublished - 2000 Jun 1
Externally publishedYes
EventYamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99) - Nagano, Jpn
Duration: 1999 Aug 241999 Aug 28

ASJC Scopus subject areas

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

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