Finite Temperature Effects in a One-Dimensional Mott-Hubbard Insulator

Angle-Resolved Photoemission Study of Na0.96V2O5

K. Kobayashi, Takashi Mizokawa, A. Fujimori, M. Isobe, Y. Ueda, T. Tohyama, S. Maekawa

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

We have made an angle-resolved photoemission study of a one-dimensional Mott-Hubbard insulator Na0.96V2O5 and found that the spectra of the V 3d lower Hubbard band are strongly dependent on the temperature. We have calculated the one-particle spectral function of the one-dimensional t-J model at finite temperatures by exact diagonalization and compared them with the experimental results. Good overall agreement is obtained between experiment and theory. The strong finite temperature effects are discussed in terms of the existence of the "Fermi surface" of the spinon band.

Original languageEnglish
Pages (from-to)803-806
Number of pages4
JournalPhysical Review Letters
Volume82
Issue number4
Publication statusPublished - 1999 Jan 25
Externally publishedYes

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temperature effects
photoelectric emission
insulators
Fermi surfaces
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Kobayashi, K., Mizokawa, T., Fujimori, A., Isobe, M., Ueda, Y., Tohyama, T., & Maekawa, S. (1999). Finite Temperature Effects in a One-Dimensional Mott-Hubbard Insulator: Angle-Resolved Photoemission Study of Na0.96V2O5. Physical Review Letters, 82(4), 803-806.

Finite Temperature Effects in a One-Dimensional Mott-Hubbard Insulator : Angle-Resolved Photoemission Study of Na0.96V2O5. / Kobayashi, K.; Mizokawa, Takashi; Fujimori, A.; Isobe, M.; Ueda, Y.; Tohyama, T.; Maekawa, S.

In: Physical Review Letters, Vol. 82, No. 4, 25.01.1999, p. 803-806.

Research output: Contribution to journalArticle

Kobayashi, K, Mizokawa, T, Fujimori, A, Isobe, M, Ueda, Y, Tohyama, T & Maekawa, S 1999, 'Finite Temperature Effects in a One-Dimensional Mott-Hubbard Insulator: Angle-Resolved Photoemission Study of Na0.96V2O5', Physical Review Letters, vol. 82, no. 4, pp. 803-806.
Kobayashi, K. ; Mizokawa, Takashi ; Fujimori, A. ; Isobe, M. ; Ueda, Y. ; Tohyama, T. ; Maekawa, S. / Finite Temperature Effects in a One-Dimensional Mott-Hubbard Insulator : Angle-Resolved Photoemission Study of Na0.96V2O5. In: Physical Review Letters. 1999 ; Vol. 82, No. 4. pp. 803-806.
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