One-particle excitations in strong-coupling superconductors: A new realization of the t-J model
A. G. Rojo, J. O. Sofo, C. A. Balseiro
DOI 10.1103/PhysRevB.42.10241 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We study the one-particle excitations in strong-coupling superconductors described by a negative-U Hubbard Hamiltonian. We show that the problem of single-particle excitation can be mapped onto that of a hole in a polarized antiferromagnetic Heisenberg model. We discuss—using a self-consistent diagrammatic approach—the distortion of the superfluid order parameter in the vicinity of the quasiparticle and the connection with the pairing-bag problem.
Similar papers
Gauge symmetry breaking, collective modes, and boson superconductivity in the t-J model
similarity 0.90Maxim Raykin
Source status unknown — claims are unverified
Antiferromagnetic, metal-insulator, and superconducting phase transitions in underdoped cuprates: Slave-fermion t−J model in the hopping expansion
similarity 0.88Akihiro Shimizu et al.
Source status unknown — claims are unverified
Spin exchange and superconductivity in a t−J′−V model for two-dimensional quarter-filled systems
similarity 0.88Andrés Greco et al.
Source status unknown — claims are unverified
High Temperature Superconductivity in the 2D t-J Model at Metal-Insulator Transition: Variational Mean Field Results
similarity 0.87Ken Cappon · 1998 · arXiv:cond-mat/9806035
Source status unknown — claims are unverified
Spin-fluctuation exchange study of superconductivity in two- and three-dimensional single-band Hubbard models
similarity 0.87Ryotaro Arita et al.
Source status unknown — claims are unverified
Hole-pair symmetry and excitations in the strong-coupling extended t-Jz model: competition between d-wave and p-wave
similarity 0.87R. M. Fye et al. · 2004 · arXiv:cond-mat/0403733
Source status unknown — claims are unverified