Ferron-like states in YBa_2Cu_3O_(6+x)
arXiv:cond-mat/9809129 · doi:10.1016/S0921-4534(99)00243-9
Abstract
With the use of the Hubbard model bound hole states in YBa_2Cu_3O_(6+x) are studied. For the parameters of this crystal the exchange interaction between the spin-carrying chain ion O^- and Cu-O plane sites is shown to ensure the formation of a large ferromagnetically ordered clusters around holes in the plane.
8 pages, 2 figures