Effects of Weak Intersite Repulsion and Negative Diagonal Transfer on Superconductivity and Antiferromagnetism in Hubbard Model

Kenji Kobayashi, Hisatoshi Yokoyama

研究成果: Conference article査読

5 被引用数 (Scopus)

抄録

Withcuprate superconductors in mind, we study the effects of intersite repulsion V and diagonal transfer on antiferromagnetism (AF) and superconductivity (SC) inthe Hubbard model on a squarelattice, using a variational Monte Carlo method. In the trial wave function, essential factors for Mott physics and band renormalization are included. It is foundthat the effect of small V generally suppresses SC, but makesthe range of doping rate unstable toward phase separation narrower.The effect of also extends thearea stable against charge inhomogeneity, and, in particular,removesthe area of a coexistent state of SC and AF.

本文言語English
ページ(範囲)9-12
ページ数4
ジャーナルPhysics Procedia
65
DOI
出版ステータスPublished - 2015
イベント27th International Symposium on Superconductivity, ISS 2014 - Tokyo, Japan
継続期間: 2014 11 252014 11 27

ASJC Scopus subject areas

  • 物理学および天文学(全般)

フィンガープリント

「Effects of Weak Intersite Repulsion and Negative Diagonal Transfer on Superconductivity and Antiferromagnetism in 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