1207.2947 (Krzysztof Rościszewski et al.)

Stripe Phases in Layered Nickelates    [PDF]

Krzysztof Rościszewski, Andrzej M. Oleś

To describe quasi two-dimensional nickelates we introduce an effective Hamiltonian for $e_g$ 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.

View original: http://arxiv.org/abs/1207.2947