Paramagnon-induced dispersion anomalies in the cuprates

2007/01/22 by R. S. Markiewicz, S. Sahrakorpi, A. Bansil +1 · 3 citations
Engineering · Physics and Astronomy · #Dispersion (optics) #Magnetic confinement fusion research #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Superconducting Materials and Applications #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.76.174514

Submitted to PRL, Dec. 21, 2006; 4 eps figures, revtex

arxiv created 2007/01/22 · openalex publication_date 2007/11/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We report the self-energy associated with random-phase approximation magnetic susceptibility in the hole-doped Bi₂Sr₂CuO₆ (Bi2201) and the electron-doped Nd_2\ensuremath-xCe_xCuO₄ (NCCO) in the overdoped regime within the framework of a one-band Hubbard model. A strong weight is found in the magnetic spectrum around (\ensuremathπ,0) at about 360\phantom\rule0.3em0exmeV in Bi2201 and 640\phantom\rule0.3em0exmeV in NCCO, which yields dispersion anomalies in accord with the recently observed ``waterfall'' effects in the cuprates.

Citations

• Evidence for ubiquitous strong electron–phonon coupling in high-temperature superconductors
• Magnetic energy change available to superconducting condensation in optimally doped YBa2Cu3O6.95
• Possible observation of “string excitations” of a hole in a quantum antiferromagnet
• High-Energy Scale Revival and Giant Kink in the Dispersion of a Cuprate Superconductor
• Strong charge fluctuations manifested in the high-temperature Hall coefficient of high-Tccuprates
• Universal High Energy Anomaly in the Angle-Resolved Photoemission Spectra of High Temperature Superconductors: Possible Evidence of Spinon and Holon Branches
• Anomalous Enhancement of the Coupling to the Magnetic Resonance Mode in Underdoped Pb-Bi2212
• Importance of Matrix Elements in the ARPES Spectra of BISCO

Cited by

• Self-energy and fluctuation spectra in cuprates: Comparing optical and photoemission results
• Temperature and Doping Dependence of the High-Energy Kink in Cuprates
• Intermediate coupling model of the cuprates