Effects of interladder couplings in the trellis lattice

Details Effects of interladder couplings in the trellis lattice Effects of interladder couplings in the trellis lattice

2000-08-29

arxiv.org/abs/cond-mat/0008427v2

Physics

Condensed Matter

Strongly Correlated Electrons

final version, to appear in Physical Review B

Scientific paper

10.1103/PhysRevB.63.144431

Strongly correlated models on coupled ladders in the presence of frustration, in particular the trellis lattice, are studied by numerical techniques. For the undoped case, the possibility of incommensurate peaks in the magnetic structure factor at low temperatures is suggested. In the doped case, our main conclusion for the trellis lattice is that by increasing the interladder coupling, the balance between the magnetic energy in the ladders and the kinetic energy in the zig-zag chains is altered leading eventually to the destruction of the hole pairs initially formed and localized in the ladders.

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