Magnetic order in ferromagnetically coupled spin ladders

DALOSTO,; RIERA

PHYSICAL REVIEW B

AMER PHYSICAL SOC

Año: 2000 vol. 62 p. 928 - 933

1098-0121

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 zigzag chains is altered leading eventually to the destruction of the hole pairs initially formed and localized in the ladders.Citado: 13