Role of spin-orbit interaction on the superconductivity in Nax CoO2 · y H2 O: Phase diagram under the magnetic field

Y. Yanase, Masahito Mochizuki, M. Ogata

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The d-vector in possible spin triplet superconductor Nax CoO2 · y H2 O is microscopically analyzed on the basis of the multi-orbital Hubbard model including the atomic spin-orbit coupling. As a result of the perturbation theory, it is shown that the d-vector is parallel to the plane when the pairing symmetry is p-wave, while both over(d, ^) ∥ xy and over(d, ^) ∥ z are possible in the f-wave state. We point out that the multiple phase transitions are expected under the in-plane magnetic field when the pairing symmetry is p-wave.

Original languageEnglish
Pages (from-to)873-874
Number of pages2
JournalPhysica B: Condensed Matter
Volume378-380
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2006 May 1
Externally publishedYes

Fingerprint

Superconductivity
spin-orbit interactions
Phase diagrams
Orbits
superconductivity
phase diagrams
Magnetic fields
magnetic fields
Hubbard model
symmetry
Superconducting materials
perturbation theory
Phase transitions
orbits
orbitals

Keywords

  • D-vector
  • Multiple phase diagram
  • Na CoO · y H O
  • Spin-orbit coupling

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Role of spin-orbit interaction on the superconductivity in Nax CoO2 · y H2 O : Phase diagram under the magnetic field. / Yanase, Y.; Mochizuki, Masahito; Ogata, M.

In: Physica B: Condensed Matter, Vol. 378-380, No. SPEC. ISS., 01.05.2006, p. 873-874.

Research output: Contribution to journalArticle

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