Enhancement of the extended s-wave pairing in the two-dimensional t-J model

H. Tsuchiura; Y. Tanaka; M. Ogata; S. Kashiwaya

doi:10.1016/S0022-3697(98)00127-9

Enhancement of the extended s-wave pairing in the two-dimensional t-J model

H. Tsuchiura, Y. Tanaka, M. Ogata, S. Kashiwaya

ENG - Applied Physics

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

Abstract

The two-dimensional t-J model, including the next-nearest-neighbor hopping t′ and the three-site hopping J⁽³⁾, is studied within mean-field theory and Gutzwiller approximation. The effects of two extra terms on the d_{x2 - y2} and the extended s-wave states are compared. In the case of t′/t < 0 and J⁽³⁾/J > 0, the extended s-wave state is remarkably enhanced at a doping rate of δ > 0.5.

Original language	English
Pages (from-to)	1867-1869
Number of pages	3
Journal	Journal of Physics and Chemistry of Solids
Volume	59
Issue number	10-12
DOIs	https://doi.org/10.1016/S0022-3697(98)00127-9
Publication status	Published - 1998

Keywords

Mean-field theory
s-wave pairing
t-J model

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10.1016/S0022-3697(98)00127-9

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title = "Enhancement of the extended s-wave pairing in the two-dimensional t-J model",

abstract = "The two-dimensional t-J model, including the next-nearest-neighbor hopping t′ and the three-site hopping J(3), is studied within mean-field theory and Gutzwiller approximation. The effects of two extra terms on the dx2 - y2 and the extended s-wave states are compared. In the case of t′/t < 0 and J(3)/J > 0, the extended s-wave state is remarkably enhanced at a doping rate of δ > 0.5.",

keywords = "Mean-field theory, s-wave pairing, t-J model",

author = "H. Tsuchiura and Y. Tanaka and M. Ogata and S. Kashiwaya",

year = "1998",

doi = "10.1016/S0022-3697(98)00127-9",

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TY - JOUR

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AU - Tsuchiura, H.

AU - Tanaka, Y.

AU - Ogata, M.

AU - Kashiwaya, S.

PY - 1998

Y1 - 1998

N2 - The two-dimensional t-J model, including the next-nearest-neighbor hopping t′ and the three-site hopping J(3), is studied within mean-field theory and Gutzwiller approximation. The effects of two extra terms on the dx2 - y2 and the extended s-wave states are compared. In the case of t′/t < 0 and J(3)/J > 0, the extended s-wave state is remarkably enhanced at a doping rate of δ > 0.5.

AB - The two-dimensional t-J model, including the next-nearest-neighbor hopping t′ and the three-site hopping J(3), is studied within mean-field theory and Gutzwiller approximation. The effects of two extra terms on the dx2 - y2 and the extended s-wave states are compared. In the case of t′/t < 0 and J(3)/J > 0, the extended s-wave state is remarkably enhanced at a doping rate of δ > 0.5.

KW - Mean-field theory

KW - s-wave pairing

KW - t-J model

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EP - 1869

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 10-12

ER -

Enhancement of the extended s-wave pairing in the two-dimensional t-J model

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Keywords

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