Angle-resolved photoemission study of untwinned PrBa{sub 2}Cu{sub 3}O{sub 7}: Undoped CuO{sub 2} plane and doped CuO{sub 3} chain

Journal Article · Mon Nov 01 04:00:00 EST 1999 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.60.12335· OSTI ID:688035

Mizokawa, T ^[1]; Kim, C; Shen, Z ^[2]; Ino, A; Fujimori, A ^[1]; Goto, M; Eisaki, H; Uchida, S ^[3]; Tagami, M; Yoshida, K; Rykov, A I; Siohara, Y; Tomimoto, K; Tajima, S ^[4]

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1. Department of Complexity Science and Engineering and Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033 (Japan)
2. Department of Applied Physics and Stanford Synchrotron Radiation Laboratory, Stanford University, Stanford, California 94305 (United States)
3. Department of Superconductivity, University of Tokyo, Bunkyo-ku, Tokyo 113-0033 (Japan)
4. Superconductivity Research Laboratory, International Superconductivity Technology Center, Koto-ku, Tokyo 135-0062 (Japan)

We have performed an angle-resolved photoemission study on untwinned PrBa{sub 2}Cu{sub 3}O{sub 7}, which has low resistivity but does not show superconductivity. We have observed a dispersive feature with a band maximum around ({pi}/2,{pi}/2), indicating that this band is derived from the undoped CuO{sub 2} plane. We have observed another dispersive band exhibiting one-dimensional character, which we attribute to signals from the doped CuO{sub 3} 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. {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 688035
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 17 Vol. 60; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANGULAR DISTRIBUTION
BARIUM COMPOUNDS
BARIUM OXIDES
COPPER OXIDE SOLAR CELLS
FERMI LEVEL
HIGH-TC SUPERCONDUCTORS
PHOTOEMISSION
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES