Ground state properties of the two-dimensional spin fermion model

Nobuo Furukawa, Masatoshi Imada

Research output: Contribution to journalArticle

Abstract

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
Volume185-189
Issue numberPART 3
DOIs
Publication statusPublished - 1991 Dec 1
Externally publishedYes

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Fermions
Ground state
fermions
Spin waves
ground state
approximation
magnons
Poles
poles
diagrams
Thermodynamics
perturbation
thermodynamics

ASJC Scopus subject areas

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

Cite this

Ground state properties of the two-dimensional spin fermion model. / Furukawa, Nobuo; Imada, Masatoshi.

In: Physica C: Superconductivity and its applications, Vol. 185-189, No. PART 3, 01.12.1991, p. 1441-1442.

Research output: Contribution to journalArticle

Furukawa, Nobuo ; Imada, Masatoshi. / Ground state properties of the two-dimensional spin fermion model. In: Physica C: Superconductivity and its applications. 1991 ; Vol. 185-189, No. PART 3. pp. 1441-1442.
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