New Mean-Field Theory of the tt′t′′J Model Applied to High-Tc Superconductors
Tiago C. Ribeiro, Xiao-Gang Wen
DOI 10.1103/PhysRevLett.95.057001 · Physical Review Letters
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 introduce a new mean-field approach to the tt′t′′J model that incorporates both electronlike quasiparticle and spinon excitations as suggested by some experiments and numerical studies. It leads to a mean-field phase diagram which is consistent with that of hole and electron doped cuprates. Moreover, it provides a framework to describe the observed evolution of the electron spectral function from the undoped insulator to the overdoped Fermi metal for both hole and electron doping. The theory also provides a new non-BCS mechanism leading to superconductivity.
Similar papers
High Temperature Superconductivity in the 2D t-J Model at Metal-Insulator Transition: Variational Mean Field Results
similarity 0.94Ken Cappon · 1998 · arXiv:cond-mat/9806035
Source status unknown — claims are unverified
New mean field theory of the tt't''J model applied to the high-Tc superconductors
similarity 0.92Tiago C. Ribeiro & Xiao-Gang Wen · 2004 · arXiv:cond-mat/0410750
Source status unknown — claims are unverified
Mean-field calculations of the properties of the dilute t-J model for high-temperature superconductivity
similarity 0.92J. W. Halley et al.
Source status unknown — claims are unverified
Electromagnetic response of high-Tc superconductors: Slave-boson and doped-carrier theories
similarity 0.91Tiago C. Ribeiro & Xiao-Gang Wen
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 0.90Akihiro Shimizu et al.
Source status unknown — claims are unverified
Doped carrier formulation and mean-field theory of the tt't''J model
similarity 0.90Tiago C. Ribeiro & Xiao-Gang Wen · 2006 · arXiv:cond-mat/0601174
Source status unknown — claims are unverified