The Novel Spin-Charge Patterns in Correlated Electron Systems Described by Extended Hubbard Hamiltonian
K. Rościszewski and A.M. Oleś
M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland
Full Text PDF
Received: March 16, 2004
Inhomogeneous spin and charge orderings in doped two-dimensional correlated electron systems described by the extended Hubbard Hamiltonian were investigated. At the crossover from stripe phases to charge order phases, the novel types of ordering connected with highly symmetric superlattice-type spin and charge patterns were identified. In particular, the emergence of local hexagonal-like symmetry is of interest as such patterns are generic in complex, nonlinear dynamic systems.
DOI: 10.12693/APhysPolA.105.495
PACS numbers: 71.10.Fd, 71.27.+a, 75.25.+z, 71.15.Nc