Spin-triplet superconductivity induced by off-site Coulomb interaction in a triangular lattice

Hiroshi Kimura; Seiichiro Onari; Yukio Tanaka

doi:10.1016/j.jpcs.2008.06.134

Spin-triplet superconductivity induced by off-site Coulomb interaction in a triangular lattice

Hiroshi Kimura, Seiichiro Onari, Yukio Tanaka

Graduate School of Natural Science and Technology

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

Abstract

In order to study how superconductivity emerges when the charge fluctuation coexists with the spin fluctuation in a triangular lattice, we obtain a phase diagram against the nearest-neighbor Coulomb repulsion V and band filling n on the extended Hubbard model using the fluctuation exchange (FLEX) approximation. We find that a charge density wave (CDW) phase exists in the region where the value of V is large, and the f-wave spin-triplet pairing mediated by a strong charge fluctuation is dominant near the CDW phase.

Original language	English
Pages (from-to)	3310-3312
Number of pages	3
Journal	Journal of Physics and Chemistry of Solids
Volume	69
Issue number	12
DOIs	https://doi.org/10.1016/j.jpcs.2008.06.134
Publication status	Published - Dec 2008

Keywords

A. Organic compounds
D. Charge-density waves
D. Spin-density waves
D. Superconductivity

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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10.1016/j.jpcs.2008.06.134

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title = "Spin-triplet superconductivity induced by off-site Coulomb interaction in a triangular lattice",

abstract = "In order to study how superconductivity emerges when the charge fluctuation coexists with the spin fluctuation in a triangular lattice, we obtain a phase diagram against the nearest-neighbor Coulomb repulsion V and band filling n on the extended Hubbard model using the fluctuation exchange (FLEX) approximation. We find that a charge density wave (CDW) phase exists in the region where the value of V is large, and the f-wave spin-triplet pairing mediated by a strong charge fluctuation is dominant near the CDW phase.",

keywords = "A. Organic compounds, D. Charge-density waves, D. Spin-density waves, D. Superconductivity",

author = "Hiroshi Kimura and Seiichiro Onari and Yukio Tanaka",

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AU - Kimura, Hiroshi

AU - Onari, Seiichiro

AU - Tanaka, Yukio

PY - 2008/12

Y1 - 2008/12

N2 - In order to study how superconductivity emerges when the charge fluctuation coexists with the spin fluctuation in a triangular lattice, we obtain a phase diagram against the nearest-neighbor Coulomb repulsion V and band filling n on the extended Hubbard model using the fluctuation exchange (FLEX) approximation. We find that a charge density wave (CDW) phase exists in the region where the value of V is large, and the f-wave spin-triplet pairing mediated by a strong charge fluctuation is dominant near the CDW phase.

AB - In order to study how superconductivity emerges when the charge fluctuation coexists with the spin fluctuation in a triangular lattice, we obtain a phase diagram against the nearest-neighbor Coulomb repulsion V and band filling n on the extended Hubbard model using the fluctuation exchange (FLEX) approximation. We find that a charge density wave (CDW) phase exists in the region where the value of V is large, and the f-wave spin-triplet pairing mediated by a strong charge fluctuation is dominant near the CDW phase.

KW - A. Organic compounds

KW - D. Charge-density waves

KW - D. Spin-density waves

KW - D. Superconductivity

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EP - 3312

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

SN - 0022-3697

IS - 12

ER -

Spin-triplet superconductivity induced by off-site Coulomb interaction in a triangular lattice

Abstract

Keywords

ASJC Scopus subject areas

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