Spin-polaron band structure and hole pockets in underdoped cuprates

2008/05/27 by P. Wrobel, P. Wróbel, W. Suleja +1 · 16 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Antiferromagnetism #Condensed matter physics #Cuprate #Electron #Electronic band structure #Fermi Gamma-ray Space Telescope #Fermi surface #Magnetic and transport properties of perovskites and related materials #Mott insulator #Physics #Physics of Superconductivity and Magnetism #Polaron #Pseudogap #Quantum mechanics #Spin (aerodynamics) #Superconductivity #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.78.064501

published in Physical Review B 78(6) (American Physical Society) · 19 pages, 16 figures

arxiv created 2008/05/27 · openalex publication_date 2008/08/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We present a variational approach based on the string picture to analyze the internal structure and dispersion of spin polarons with different symmetries in an antiferromagnet. We then use this to discuss the properties of underdoped cuprate superconductor within the ``doped insulator'' picture. The theory explains the remnant Fermi surface for the undoped compounds, as well as hole pockets, Fermi arcs, high-energy pseudogap, and the midinfrared band in doped materials. Destructive interference between the phases of a photohole near \ensuremathΓ and the internal phases of the Zhang-Rice singlet combined with our theory moreover explains the ``waterfall'' phenomenon.

Citations

• Angle-resolved photoemission studies of the cuprate superconductors
• Doping-dependent quasiparticle band structure in cuprate superconductors
• Hole-hole contact interaction in thet-Jmodel
• Optical conductivity of strongly correlated electron systems
• Cumulant approach to weakly doped antiferromagnets
• Temperature and Doping Dependence of the High-Energy Kink in Cuprates
• Quantum oscillations and the Fermi surface in an underdoped high-Tc superconductor
• Momentum and excitation energy dependence of the "waterfalls" in cuprates
• High-Energy Scale Revival and Giant Kink in the Dispersion of a Cuprate Superconductor
• Electron pockets in the Fermi surface of hole-doped high-Tc superconductors
• Universal High Energy Anomaly in the Angle-Resolved Photoemission Spectra of High Temperature Superconductors: Possible Evidence of Spinon and Holon Branches