Angle-resolved photoemission study of untwinned PrBa2Cu3O7: Undoped CuO2 plane and doped CuO3 chain

T. Mizokawa, C. Kim, Z. X. Shen, A. Ino, A. Fujimori, M. Goto, H. Eisaki, S. Uchida, M. Tagami, K. Yoshida, A. I. Rykov, Y. Siohara, K. Tomimoto, S. Tajima

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35 Citations (Scopus)

Abstract

We have performed an angle-resolved photoemission study on untwinned PrBa2Cu3O7, which has low resistivity but does not show superconductivity. We have observed a dispersive feature with a band maximum around (π/2,π/2), indicating that this band is derived from the undoped CuO2 plane. We have observed another dispersive band exhibiting one-dimensional character, which we attribute to signals from the doped CuO3 chain. The overall band dispersion of the one-dimensional band agrees with the prediction of the t-J model calculation with parameters relevant to cuprates except that the intensity near the Fermi level is considerably suppressed in the experiment.

Original languageEnglish
Pages (from-to)12335-12341
Number of pages7
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume60
Issue number17
Publication statusPublished - 1999 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Mizokawa, T., Kim, C., Shen, Z. X., Ino, A., Fujimori, A., Goto, M., Eisaki, H., Uchida, S., Tagami, M., Yoshida, K., Rykov, A. I., Siohara, Y., Tomimoto, K., & Tajima, S. (1999). Angle-resolved photoemission study of untwinned PrBa2Cu3O7: Undoped CuO2 plane and doped CuO3 chain. Physical Review B - Condensed Matter and Materials Physics, 60(17), 12335-12341.