Mean-field phase diagram of interacting e_g electrons
arXiv:cond-mat/0502160 · doi:10.1016/j.physb.2005.01.188
Abstract
We investigate the magnetic phase diagram of the two-dimensional model for e_g electrons which describes layered nickelates. One finds a generic tendency towards magnetic order accompanied by orbital polarization. For two equivalent orbitals with diagonal hopping such orbitally polarized phases are induced by finite crystal field.
2 pages, 2 figures