Angle-Resolved Photoemission Study of Insulating and Metallic Cu-O Chains inPrBa2Cu3O7andPrBa2Cu4O8

2000/11/07 by T. Mizokawa, C. Kim, Z. -X. Shen +24 · 1 citation
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.85.4779

published as Phys. Rev. Lett. 85 (2000) 4779--4782 · 4 pages, 5 figures, to be published in PRL

arxiv created 2000/11/07 · openalex publication_date 2000/11/27 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We compare the angle-resolved photoemission spectra of the hole-doped Cu-O chains in PrBa₂Cu₃O₇ (Pr123) and in PrBa₂Cu₄O₈ (Pr124). While, in Pr123, a dispersive feature from the chain takes a band maximum at k_b (momentum along the chain) \ensuremath∼\ensuremathπ/4 and loses its spectral weight around the Fermi level, it reaches the Fermi level at k_b\ensuremath∼\ensuremathπ/4 in Pr124. Although the chains in Pr123 and Pr124 are approximately 1/4 filled, they show contrasting behaviors: While the chains in Pr123 have an instability to charge ordering, those in Pr124 avoid it and show an interesting spectral feature of a metallic coupled-chain system.

Citations

• Non-Fermi-Liquid Single Particle Line Shape of the Quasi-One-Dimensional Non-CDW MetalLi0.9Mo6O17: Comparison to the Luttinger Liquid

Cited by

• Fragile three-dimensionality in the quasi-one-dimensional cuprate PrBa2Cu4O8