Stripe Phases in Layered Nickelates
Abstract
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.
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