Angle-resolved photoemission study of Zn-doped PrBa2Cu4O8: Possible observation of single-particle spectral function for a Tomonaga-Luttinger liquid

T. Mizokawa, K. Nakada, C. Kim, C. Kim, Z. X. Shen, Z. X. Shen, T. Yoshida, A. Fujimori, A. Fujimori, S. Horii, Yuh Yamada, H. Ikuta, U. Mizutani

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Abstract

We have studied the electronic structure of metallic Cu-O double chains in Zn-doped PrBa2Cu4O8 (Pr124) using angle-resolved photoemission spectroscopy. The single-particle spectral function of Zn-doped Pr124 is compatible with a power-law spectral function expected for a Tomonaga-Luttinger liquid. This is in contrast to the fact that the photoemission spectrum of pure Pr124 shows a Fermi step and can be interpreted as a Fermi liquid realized in coupled metallic chains. The exponent α is estimated to be 0.6±0,1 that is one of the smallest values among those obtained for various one-dimensional metals.

Original languageEnglish
Article number193101
Pages (from-to)1931011-1931014
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume65
Issue number19
DOIs
Publication statusPublished - 2002 May 15

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Mizokawa, T., Nakada, K., Kim, C., Kim, C., Shen, Z. X., Shen, Z. X., Yoshida, T., Fujimori, A., Fujimori, A., Horii, S., Yamada, Y., Ikuta, H., & Mizutani, U. (2002). Angle-resolved photoemission study of Zn-doped PrBa2Cu4O8: Possible observation of single-particle spectral function for a Tomonaga-Luttinger liquid. Physical Review B - Condensed Matter and Materials Physics, 65(19), 1931011-1931014. [193101]. https://doi.org/10.1103/PhysRevB.65.193101