Long-Range Coulomb Effect on the Antiferromagnetism in Electron-doped Cuprates

Abstract

Using mean-field theory, we illustrate the long-range Coulomb effect on the antiferromagnetism in the electron-doped cuprates. Because of the Coulomb exchange effect, the magnitude of the effective next nearest neighbor hopping parameter increases appreciably with increasing the electron doping concentration, raising the frustration to the antiferromagnetic ordering. The Fermi surface evolution in the electron-doped cuprate Nd${}_{2-x}$Ce${}_x$CuO${}_4$ and the doping dependence of the onset temperature of the antiferromagnetic pseudogap can be reasonably explained by the present consideration.

arXiv comment4 pages, 4 figures

References in corpus (21)

• Angle-resolved photoemission spectroscopy of the cuprate superconductors
• Doping dependence of an n-type cuprate superconductor investigated by ARPES
• Competition between Antiferromagnetism and Superconductivity in High $T_c$ Cuprates
• Hot Spots and Pseudogaps for Hole- and Electron-Doped High-Temperature Superconductors
• Pairing Fluctuation Theory of Superconducting Properties in Underdoped to Overdoped Cuprates
• Pseudogap and Spin Fluctuations in the Normal State of Electron-Doped Cuprates
• Asymmetry of the electronic states in hole- and electron-doped cuprates: Exact diagonalization study of the t-t'-t''-J model
• Theory of electron-hole asymmetry in doped {\em CuO${}_2$} planes
• Physics of cuprates with the two-band Hubbard model - The validity of the one-band Hubbard model
• Antiferromagnetic fluctuations and d-wave superconductivity in electron-doped high-temperature superconductors
• Theory for Slightly Doped Antiferromagnetic Mott Insulators
• Electronic States in the Antiferromagnetic Phase of Electron-Doped High-Tc Cuprates
• Mode-Coupling Model of Mott Gap Collapse in the Cuprates: Natural Phase Boundary for Quantum Critical Points
• Doping dependence of chemical potential and entropy in hole- and electron-doped high-Tc cuprates
• Fermi surface evolution in the antiferromagnetic state for the electron-doped t-t'-t''-J model
• Single-Particle Spectrum in the Electron-Doped Cuprates
• Frustration of antiferromagnetism in the t-t'-Hubbard model at weak coupling
• d-Wave Pairing in the Presence of Long-Range Coulomb Interactions
• Spin dynamics in the antiferromagnetic phase for electron-doped cuprate superconductors
• Low-energy spectra in the t-J type models at light doping
• Pairing-fluctuation effect in quasi-two-dimensional superconductivity

Cited by in corpus (5)

• Non-Perturbative Treatment of Charge and Spin Fluctuations in the Two-Dimensional Extended Hubbard Model: Extended Two-Particle Self-Consistent Approach
• s-Wave-Like excitation in the superconducting state of electron-doped cuprates with d-wave pairing
• Study of interacting electrons in graphene under the renormalized-ring-diagram approximation
• Fluctuation-Exchange Study of Antiferromagnetism in Electron-Doped Cuprate Superconductors with Disorder
• Theory of antiferromagnetism in the electron-doped cuprate superconductors