Ground state properties of the two-dimensional spin fermion model

Nobuo Furukawa, Masatoshi Imada

Research output: Contribution to journalArticle


Two dimensional spin-fermion model is studied by using the perturbation method and the spin wave approximation. Non-crossing diagrams are calculated using the dominant pole approximation. As a result, we see that the renormalization parameter z is reduced as z ∝ L -1 4, where L is the linear dimension of the system, and the doped fermion becomes totally incoherent in the thermodynamic limit.

Original languageEnglish
Pages (from-to)1441-1442
Number of pages2
JournalPhysica C: Superconductivity and its applications
Issue numberPART 3
Publication statusPublished - 1991 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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