Continuous Mott transition in a two-dimensional Hubbard model

Yuki Yanagi, Kazuo Ueda

研究成果: Article査読

5 被引用数 (Scopus)

抄録

We investigate a nonmagnetic metal-insulator transition in the 1/5-depleted square lattice Hubbard model at half filling within the eight-site cellular dynamical mean field theory. We find that a metal-insulator transition without any signatures of a first-order transition, a continuous Mott transition, takes place in a certain range of parameters. The nature of the continuous Mott transition is merely a Lifshitz transition driven by the on-site Coulomb interaction. The renormalized matrix elements of hoppings and the spin-spin correlation functions reveal that the physics of this transition is a strong enhancement of the dimerization due to the nonlocal effects of the electron-electron interaction.

本文言語English
論文番号085113
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
90
8
DOI
出版ステータスPublished - 2014 8 11
外部発表はい

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

フィンガープリント 「Continuous Mott transition in a two-dimensional Hubbard model」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル