Singular or non-Fermi liquids
An introductory survey of the theoretical ideas and calculations and the experimental results
which depart from Landau Fermi liquids is presented. The common themes and possible …
which depart from Landau Fermi liquids is presented. The common themes and possible …
Ground-state phase diagram of the extended two-leg ladder
Inspired by the observation of a robust d-wave superconducting phase driven by tuning the
next-nearest-neighbor (NNN) electron hopping in recent density matrix renormalization …
next-nearest-neighbor (NNN) electron hopping in recent density matrix renormalization …
Kinetic energy driven superconductivity in doped cuprates
S Feng - Physical Review B, 2003 - APS
Within the t− J model, the mechanism of superconductivity in doped cuprates is studied
based on the partial charge-spin separation fermion-spin theory. It is shown that dressed …
based on the partial charge-spin separation fermion-spin theory. It is shown that dressed …
A gauge invariant dressed holon and spinon description of the normal state of underdoped cuprates
S Feng, J Qin, T Ma - Journal of Physics: Condensed Matter, 2004 - iopscience.iop.org
A partial charge–spin separation fermion-spin theory is developed to study the normal-state
properties of the underdoped cuprates. In this approach, the physical electron is decoupled …
properties of the underdoped cuprates. In this approach, the physical electron is decoupled …
Magnetic properties and pairing tendencies of the iron-based superconducting ladder : Combined ab initio and density matrix renormalization group study
The recent discovery of superconductivity under high pressure in the two-leg ladder
compound BaFe 2 S 3 [H. Takahashi, Nat. Mater. 14, 1008 (2015) 1476-1122 …
compound BaFe 2 S 3 [H. Takahashi, Nat. Mater. 14, 1008 (2015) 1476-1122 …
Proposal of an extended Hamiltonian for high- cuprates from ab initio calculations on embedded clusters
CJ Calzado, JP Malrieu - Physical Review B, 2001 - APS
A series of accurate ab initio calculations on Cu p O q finite clusters, properly embedded in
the Madelung potential of the infinite lattice, have been performed in order to determine the …
the Madelung potential of the infinite lattice, have been performed in order to determine the …
Pairing tendencies in a two-orbital Hubbard model in one dimension
The recent discovery of superconductivity under high pressure in the ladder compound
BaFe 2 S 3 has opened a new field of research in iron-based superconductors with focus on …
BaFe 2 S 3 has opened a new field of research in iron-based superconductors with focus on …
Electronic structure of kinetic energy driven cuprate superconductors
S Feng, H Guo, Y Lan, L Cheng - International Journal of Modern …, 2008 - World Scientific
In this paper, we review the low energy electronic structure of the kinetic energy driven d-
wave cuprate superconductors. We give a general description of the charge-spin separation …
wave cuprate superconductors. We give a general description of the charge-spin separation …
Enhancement of -wave pairing in the striped phase with nearest neighbor attraction
Recent experimental results of angle-resolved photoemission spectroscopy suggested that
an additional strong nearest neighbor attraction in the Hubbard model might be significant …
an additional strong nearest neighbor attraction in the Hubbard model might be significant …
Qualitative understanding of the sign of asymmetry in the extended model and relevance for pairing properties
Numerical calculations illustrate the effect of the sign of the next-nearest-neighbor hopping
term t′ on the two-hole properties of the t− t′− J model. Working mainly on two-leg …
term t′ on the two-hole properties of the t− t′− J model. Working mainly on two-leg …