Unified origin for superconductivity, magnetism, and large thermopower in Nax CoO2

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

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We argue that the large thermopower, magnetism, and superconductivity observed in Nax CoO2 share the same origin, namely, the peculiar shape of the a1 g band. Superconductivity and magnetism arise from the local minimum structure of the band at the Γ point, while the thermopower originates from the overall "pudding mold" shape of the band. Our study shows the importance of the band structure and the Fermi surface even in strongly correlated systems.

Original languageEnglish
Pages (from-to)3360-3364
Number of pages5
JournalJournal of Physics and Chemistry of Solids
Volume69
Issue number12
DOIs
Publication statusPublished - Dec 2008
Externally publishedYes

Fingerprint

Thermoelectric power
Magnetism
Superconductivity
superconductivity
Fermi surface
Band structure
Fermi surfaces

Keywords

  • 74.20.Mn
  • 75.30.Fv
  • D. Fermi surface
  • D. Superconductivity

ASJC Scopus subject areas

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

Cite this

Kuroki, K., Arita, R., Okubo, S., Nojima, T., Usui, H., Onari, S., & Tanaka, Y. (2008). Unified origin for superconductivity, magnetism, and large thermopower in Nax CoO2. Journal of Physics and Chemistry of Solids, 69(12), 3360-3364. https://doi.org/10.1016/j.jpcs.2008.06.131

Unified origin for superconductivity, magnetism, and large thermopower in Nax CoO2. / Kuroki, K.; Arita, R.; Okubo, S.; Nojima, T.; Usui, H.; Onari, S.; Tanaka, Y.

In: Journal of Physics and Chemistry of Solids, Vol. 69, No. 12, 12.2008, p. 3360-3364.

Research output: Contribution to journalArticle

Kuroki, K, Arita, R, Okubo, S, Nojima, T, Usui, H, Onari, S & Tanaka, Y 2008, 'Unified origin for superconductivity, magnetism, and large thermopower in Nax CoO2', Journal of Physics and Chemistry of Solids, vol. 69, no. 12, pp. 3360-3364. https://doi.org/10.1016/j.jpcs.2008.06.131
Kuroki, K. ; Arita, R. ; Okubo, S. ; Nojima, T. ; Usui, H. ; Onari, S. ; Tanaka, Y. / Unified origin for superconductivity, magnetism, and large thermopower in Nax CoO2. In: Journal of Physics and Chemistry of Solids. 2008 ; Vol. 69, No. 12. pp. 3360-3364.
@article{e0944860436a451494c22c5cc325a8cc,
title = "Unified origin for superconductivity, magnetism, and large thermopower in Nax CoO2",
abstract = "We argue that the large thermopower, magnetism, and superconductivity observed in Nax CoO2 share the same origin, namely, the peculiar shape of the a1 g band. Superconductivity and magnetism arise from the local minimum structure of the band at the Γ point, while the thermopower originates from the overall {"}pudding mold{"} shape of the band. Our study shows the importance of the band structure and the Fermi surface even in strongly correlated systems.",
keywords = "74.20.Mn, 75.30.Fv, D. Fermi surface, D. Superconductivity",
author = "K. Kuroki and R. Arita and S. Okubo and T. Nojima and H. Usui and S. Onari and Y. Tanaka",
year = "2008",
month = "12",
doi = "10.1016/j.jpcs.2008.06.131",
language = "English",
volume = "69",
pages = "3360--3364",
journal = "Journal of Physics and Chemistry of Solids",
issn = "0022-3697",
publisher = "Elsevier Limited",
number = "12",

}

TY - JOUR

T1 - Unified origin for superconductivity, magnetism, and large thermopower in Nax CoO2

AU - Kuroki, K.

AU - Arita, R.

AU - Okubo, S.

AU - Nojima, T.

AU - Usui, H.

AU - Onari, S.

AU - Tanaka, Y.

PY - 2008/12

Y1 - 2008/12

N2 - We argue that the large thermopower, magnetism, and superconductivity observed in Nax CoO2 share the same origin, namely, the peculiar shape of the a1 g band. Superconductivity and magnetism arise from the local minimum structure of the band at the Γ point, while the thermopower originates from the overall "pudding mold" shape of the band. Our study shows the importance of the band structure and the Fermi surface even in strongly correlated systems.

AB - We argue that the large thermopower, magnetism, and superconductivity observed in Nax CoO2 share the same origin, namely, the peculiar shape of the a1 g band. Superconductivity and magnetism arise from the local minimum structure of the band at the Γ point, while the thermopower originates from the overall "pudding mold" shape of the band. Our study shows the importance of the band structure and the Fermi surface even in strongly correlated systems.

KW - 74.20.Mn

KW - 75.30.Fv

KW - D. Fermi surface

KW - D. Superconductivity

UR - http://www.scopus.com/inward/record.url?scp=57049164788&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=57049164788&partnerID=8YFLogxK

U2 - 10.1016/j.jpcs.2008.06.131

DO - 10.1016/j.jpcs.2008.06.131

M3 - Article

VL - 69

SP - 3360

EP - 3364

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

SN - 0022-3697

IS - 12

ER -