Electronic order with staggered Kondo and crystalline electric field singlets

Shintaro Hoshino, Junya Otsuki, Yoshio Kuramoto

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19 Citations (Scopus)

Abstract

Novel electronic order is found theoretically for a system where even number of localized electrons per site are coupled with conduction electrons. For precise quantitative study, a variant of the Kondo lattice model is taken with crystalline electric field (CEF) singlet and triplet states for each site. Using the dynamical mean-field theory combined with the continuous-time quantum Monte Carlo method, a staggered order with alternating Kondo and CEF singlets is identified for a case with one conduction electron per site being distributed in two conduction bands each of which is quarter-filled. This electronic order accompanies a charge density wave (CDW) of conduction electrons that accumulate more on Kondo-singlet sites than on CEF-singlet sites. Possible relevance of the present order to the scalar order in PrFe4P12 is discussed.

Original languageEnglish
Article number074720
Journaljournal of the physical society of japan
Volume79
Issue number7
DOIs
Publication statusPublished - 2010 Jul 1

Keywords

  • Charge density wave
  • Continuous-time quantum Monte Carlo method
  • Crystalline electric field singlet
  • Dynamical mean-field theory
  • Kondo singlet
  • PrFe P

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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