Angle-resolved photoemission study of Sr2CuO3

H. Fujisawa, Takayoshi Yokoya, T. Takahashi, S. Miyasaka, M. Kibune, H. Takagi

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

We report angle-resolved photoemission spectroscopy (ARPES) on a single Cu-O chain compound Sr2CuO3 with Ne I photons. In contrast with previous ARPES with higher-energy photons, the present result clearly shows two well-separated branches of dispersions near EF ascribable to spinon and holon excitations, respectively. This indicates that spin and charge degrees of freedom are separated in one-dimensional Cu-O chains, supporting the theoretical prediction as well as the previous ARPES interpretation. Comparison with previous ARPES results indicates that surface, photoionization cross section, and finite-temperature effects substantially modify ARPES spectra.

Original languageEnglish
Pages (from-to)7358-7361
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume59
Issue number11
Publication statusPublished - 1999
Externally publishedYes

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Photoemission
Photoelectron spectroscopy
photoelectric emission
spectroscopy
Photons
Photoionization
photons
Dispersions
Thermal effects
temperature effects
photoionization
degrees of freedom
cross sections
predictions
excitation
energy

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Fujisawa, H., Yokoya, T., Takahashi, T., Miyasaka, S., Kibune, M., & Takagi, H. (1999). Angle-resolved photoemission study of Sr2CuO3. Physical Review B - Condensed Matter and Materials Physics, 59(11), 7358-7361.

Angle-resolved photoemission study of Sr2CuO3. / Fujisawa, H.; Yokoya, Takayoshi; Takahashi, T.; Miyasaka, S.; Kibune, M.; Takagi, H.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 59, No. 11, 1999, p. 7358-7361.

Research output: Contribution to journalArticle

Fujisawa, H, Yokoya, T, Takahashi, T, Miyasaka, S, Kibune, M & Takagi, H 1999, 'Angle-resolved photoemission study of Sr2CuO3', Physical Review B - Condensed Matter and Materials Physics, vol. 59, no. 11, pp. 7358-7361.
Fujisawa H, Yokoya T, Takahashi T, Miyasaka S, Kibune M, Takagi H. Angle-resolved photoemission study of Sr2CuO3. Physical Review B - Condensed Matter and Materials Physics. 1999;59(11):7358-7361.
Fujisawa, H. ; Yokoya, Takayoshi ; Takahashi, T. ; Miyasaka, S. ; Kibune, M. ; Takagi, H. / Angle-resolved photoemission study of Sr2CuO3. In: Physical Review B - Condensed Matter and Materials Physics. 1999 ; Vol. 59, No. 11. pp. 7358-7361.
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