Theory for Electron-Doped Cuprate Superconductors: d-wave symmetry order parameter

Abstract

Using as a model the Hubbard Hamiltonian we determine various basic properties of electron-doped cuprate superconductors like ${Nd}_{2-x}{Ce}_x{CuO}_4$ and ${Pr}_{2-x}{Ce}_x{CuO}_4$ for a spin-fluctuation-induced pairing mechanism. Most importantly we find a narrow range of superconductivity and like for hole-doped cuprates $d_{x^2-y^2}$ - symmetry for the superconducting order parameter. The superconducting transition temperatures $T_c(x)$ for various electron doping concentrations $x$ are calculated to be much smaller than for hole-doped cuprates due to the different Fermi surface and a flat band well below the Fermi level. Lattice disorder may sensitively distort the symmetry $d_{x^2-y^2}$ via electron-phonon interaction.

References in corpus (5)

• Phase-sensitive Evidence for d-wave Pairing Symmetry in Electron-doped Cuprate Superconductors
• Hall Effect and Resistivity in High-Tc Superconductors: The Conserving Approximation
• Evidence for nodal quasiparticles in electron-doped cuprates from penetration depth measurements
• Angle-resolved photoemission in high Tc cuprates from theoretical viewpoints
• Microwave Electrodynamics of Electron-Doped Cuprate Superconductors

Cited by in corpus (24)

• Theory of Superconductivity in Strongly Correlated Electron Systems
• Nonmonotonic d_{x^2-y^2} Superconducting Order Parameter in Nd_{2-x}Ce_xCuO_4
• Asymmetry of the electronic states in hole- and electron-doped cuprates: Exact diagonalization study of the t-t'-t''-J model
• The Hubbard model within the equations of motion approach
• Pseudogap Phenomena and Superconducting Fluctuations in Hubbard Model for High-Tc Cuprates
• Possible pseudogap behavior of electron doped high-temperature superconductors
• Electronic States in the Antiferromagnetic Phase of Electron-Doped High-Tc Cuprates
• Analysis of the elementary excitations in high-T_c cuprates: explanation of the new energy scale observed by ARPES
• Renormalization of the elementary excitations in hole- and electron-doped cuprates due to spin fluctuations
• Quantum-critical pairing in electron-doped cuprates
• Single-Particle Spectrum in the Electron-Doped Cuprates
• The resonance peak in the electron-doped cuprate superconductors
• Theory of non-Fermi liquid and pairing in electron-doped cuprates
• Square vortex lattice at anomalously low magnetic fields in electron-doped Nd${}_{1.85}$Ce${}_{0.15}$CuO${}_4$
• Superconducting phase diagram of itinerant antiferromagnets
• Kinetic Energy, Condensation Energy, Optical Sum Rule and Pairing Mechanism in High-Tc Cuprates
• Phase Diagram of the Electron-Doped Cuprate Superconductors
• Signatures of non-monotonic d-wave gap in electron-doped cuprates
• Spin-resolved impurity resonance states in electron-doped cuprate superconductors
• Nonmonotonic d_{x^2-y^2}-Wave Superconductivity in Electron-Doped Cuprates Viewing from the Strong-Coupling Side
• Self-consistent Eliashberg theory, Tc, and the gap function in electron-doped cuprates
• Electronic Raman response in anisotropic metals
• NMR and NQR Fluctuation Effects in Layered Superconductors
• Evolution of a bosonic mode across the superconducting dome in the high-Tc cuprate Pr(2-x)Ce(x)CuO(4-δ)