Fermi surface reconstruction in the Kondo lattice model and the periodic Anderson model

Hiroshi Watanabe, Masao Ogata

研究成果: Article査読

1 被引用数 (Scopus)

抄録

We study the ground state properties of the Kondo lattice model (KLM) and the periodic Anderson model (PAM) in a two-dimensional square lattice with the variational Monte Carlo method. In addition to the conventional second-order antiferromagnetic transition, we find a novel type of quantum phase transition which induces the change of topology of the Fermi surface (Fermi surface reconstruction). The Fermi surface reconstruction is originated from the mechanism of the energy gain and is characteristic both of the KLM and of the PAM. We show the ground state phase diagrams of both models and discuss the relation to the recent experiments which have investigated the change of the Fermi surface.

本文言語English
論文番号042227
ジャーナルJournal of Physics: Conference Series
150
4
DOI
出版ステータスPublished - 2009
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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