Charge Gap, Charge Susceptibility and Spin Correlation in the Hubbard Model on a Square Lattice

Nobuo Furukawa, Masatoshi Imada

研究成果: Article

56 引用 (Scopus)

抜粋

Quantum Monte Carlo study of the Hubbard model on a square lattice in the ground state is reported. For the on-site interaction U=4 scaled by the transfer, the charge excitation gap at the half-filling is estimated to be δ, = 0.58±0.08. Near half-filling, the charge compressibility k follows the form k∝ δ-1 for the doping concentration δ, indicating a divergent behavior as the system approaches half-filling, while k = 0 at the half-filling. The incommensurate spin correlation length ∊ scales as [formula omitted].

元の言語English
ページ(範囲)3604-3607
ページ数4
ジャーナルjournal of the physical society of japan
60
発行部数11
DOI
出版物ステータスPublished - 1991 11
外部発表Yes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

フィンガープリント Charge Gap, Charge Susceptibility and Spin Correlation in the Hubbard Model on a Square Lattice' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用