Ground state properties of the two-dimensional spin fermion model

Nobuo Furukawa; Masatoshi Imada

doi:10.1016/0921-4534(91)90847-R

Ground state properties of the two-dimensional spin fermion model

Nobuo Furukawa^*, Masatoshi Imada

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	1441-1442
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	185-189
Issue number	PART 3
DOIs	https://doi.org/10.1016/0921-4534(91)90847-R
Publication status	Published - 1991 Dec 1
Externally published	Yes

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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10.1016/0921-4534(91)90847-R

Cite this

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title = "Ground state properties of the two-dimensional spin fermion model",

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.",

author = "Nobuo Furukawa and Masatoshi Imada",

year = "1991",

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doi = "10.1016/0921-4534(91)90847-R",

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T1 - Ground state properties of the two-dimensional spin fermion model

AU - Furukawa, Nobuo

AU - Imada, Masatoshi

PY - 1991/12/1

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N2 - 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.

AB - 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.

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JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - PART 3

ER -

Ground state properties of the two-dimensional spin fermion model

Abstract

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