Odd-frequency superconductivity in the 2D extended Hubbard model

Keiji Yada, Yuichiro Shimokaji, Seiichiro Onari, Yukio Tanaka, Kazumasa Miyake

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

It is an intriguing problem to clarify whether the odd-frequency superconducting state can be derived from a microscopic model or not, where the pairing function has odd parity in frequency. We study the instability of even-frequency and odd-frequency pairings on the extended Hubbard model in a 2D triangular lattice, with off-site Coulomb interaction V and on-site Coulomb interaction U. By using the random phase approximation (RPA), we find that the instability of odd-frequency spin-triplet s-wave pairing can be dominant with increasing V.

Original languageEnglish
Pages (from-to)3321-3323
Number of pages3
JournalJournal of Physics and Chemistry of Solids
Volume69
Issue number12
DOIs
Publication statusPublished - Dec 2008
Externally publishedYes

Fingerprint

Hubbard model
Coulomb interactions
Superconductivity
superconductivity
parity
interactions
approximation

Keywords

  • A. Superconductors
  • D. Phase transitions
  • D. Spin-density waves
  • D. Superconductivity

ASJC Scopus subject areas

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

Cite this

Odd-frequency superconductivity in the 2D extended Hubbard model. / Yada, Keiji; Shimokaji, Yuichiro; Onari, Seiichiro; Tanaka, Yukio; Miyake, Kazumasa.

In: Journal of Physics and Chemistry of Solids, Vol. 69, No. 12, 12.2008, p. 3321-3323.

Research output: Contribution to journalArticle

Yada, K, Shimokaji, Y, Onari, S, Tanaka, Y & Miyake, K 2008, 'Odd-frequency superconductivity in the 2D extended Hubbard model', Journal of Physics and Chemistry of Solids, vol. 69, no. 12, pp. 3321-3323. https://doi.org/10.1016/j.jpcs.2008.06.079
Yada, Keiji ; Shimokaji, Yuichiro ; Onari, Seiichiro ; Tanaka, Yukio ; Miyake, Kazumasa. / Odd-frequency superconductivity in the 2D extended Hubbard model. In: Journal of Physics and Chemistry of Solids. 2008 ; Vol. 69, No. 12. pp. 3321-3323.
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