Stripe Phases in Layered Nickelates
K. Rościszewski a and A.M. Oleśa, b
aMarian Smoluchowski Institute of Physics, Jagiellonian University, W.S. Reymonta 4, PL-30-059 Kraków, Poland
bMax-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, D-70569 Stuttgart, Germany
Full Text PDF
To describe quasi two-dimensional nickelates we introduce an effective Hamiltonian for eg electrons, which includes the kinetic energy, on-site Coulomb interactions, spin-spin and Jahn-Teller (static) terms. The experimental stripe phases are correctly reproduced by the model. The mechanisms responsible for stripe formation are different than those reported in cuprates and manganites.
DOI: 10.12693/APhysPolA.121.1048
PACS numbers: 75.25.Dk, 75.47.Lx, 75.10.Lp, 63.20.Pw