Titlebook: Open Problems in Strongly Correlated Electron Systems; Janez Bon?a,Peter Prelov?ek,Sarben Sarkar Book 2001 Springer Science+Business Media

MAZE

Dislocation

Calculus

Stripes and Nodal Fermions as Two Sides of the Same Coin with the equally convincing evidence for BCS-like physics at large distance scales (the ‘nodal fermions’). Our central hypothesis is that the duality notion applies: the superconductor should be viewed as a condensate of topological excitations associated with the fully ordered stripe phase. As we

煩人

Coexistence of Charge and Spin-Peierls Orders in the 1/4-Filled Ladder NaV2O5tice are studied by numerical techniques. We show that, genetically, these systems undergo instabilities towards the formation of Charge Density Waves, Bond Order Waves and (generalized) spin-Peierls modulated structures. Moderate electron-electron and electron-lattice couplings can lead to a coexis

過份

CLASP

High Resolution Fermi Surface Mapping of Pb-Doped Bi-2212rue Fermi surface topology is, as physical intuition insists, independent of photon energy, hole-like and takes the form of barrels centred at the (π,π) and (-π,π) points of the two dimensional Brillouin zone.

MIME

Coexistence of Charge and Spin-Peierls Orders in the 1/4-Filled Ladder NaV2O5 repulsion. Our results are applied to the NaV.O. compound (trellis lattice) and various phases with coexisting charge disproportionation and spin-Peierls order are proposed and discussed in the context of recent experiments.

割公牛膨脹

Single Particle Excitations in the , Modeldispersion at .. We further show the existence of string excitations by considering the excitations above the quasiparticle peak at .. As opposed to the one-dimensional case, the quasiparticle weight is finite in the thermodynamic limit in two dimensions.

curriculum

languid

Phase Diagram of Spin Ladder Models and the Topology of Short Range Valence Bondsby the absence or presence of appropriately defined string order parameters. It is also shown that the mechanism of gap generation is different in two-leg and four-leg ladders. This explaines the narrow Haldane regime in . > 1 spin systems.