Unified origin for superconductivity and 3D magnetism in Nax CoO2

K. Kuroki, S. Okubo, T. Nojima, H. Usui, R. Arita, S. Onari, Y. Tanaka

Research output: Contribution to journalArticle

Abstract

We argue that the spin fluctuations that give rise to superconductivity in Nax CoO2 · y H2 O and the 3D magnetism in the non-hydrated Nax CoO2 share the same origin. Due to the local minimum of the a1 g band at the Γ point, inner and outer portions of the Fermi surface arise, where the nesting between the two results in these interesting phenomena.

Original languageEnglish
Pages (from-to)1151-1153
Number of pages3
JournalPhysica B: Condensed Matter
Volume403
Issue number5-9
DOIs
Publication statusPublished - Apr 1 2008

Keywords

  • Fermi surface
  • Magnetism
  • Na CoO
  • Superconductivity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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    Kuroki, K., Okubo, S., Nojima, T., Usui, H., Arita, R., Onari, S., & Tanaka, Y. (2008). Unified origin for superconductivity and 3D magnetism in Nax CoO2. Physica B: Condensed Matter, 403(5-9), 1151-1153. https://doi.org/10.1016/j.physb.2007.10.352