d-Wave spin density wave phase in the attractive hubbard model with spin polarization

Hiromasa Tamaki, Kazumasa Miyake, Yoji Ohashi

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


We investigate the possibility of an unconventional spin density wave (SDW) in the attractive Hubbard model with finite spin polarization. We show that pairing and density fluctuations induce a transverse d-wave SDW near the half-filling. This novel SDW is related to the d-wave superfluidity induced by antiferromagnetic spin fluctuations, in the sense that they are connected with each other through Shibas attraction-repulsion transformation. Our results predict the d-wave SDW in real systems, such as cold Fermi atom gases with a population imbalance and compounds involving valence skipper elements.

Original languageEnglish
Article number073001
JournalJournal of the Physical Society of Japan
Issue number7
Publication statusPublished - 2009 Jul


  • Attraction-repulsion transformation
  • Attractive Hubbard model
  • Charge density wave
  • D-wave SDW
  • FLEX approximation
  • Paulis paramagnetic effect
  • Superconductivity
  • Superfluidity

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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