The Crucial Role of Jahn-Teller Effect in the Formation of Orbital and Magnetic Structures of Charge Ordered Manganite R_(0.5)A_(0.5)MnO_3

摘要

This work is devoted to the description of the orbital and magnetic structures of charge ordered manganites. The model under consideration is based on the orbital dependence of the magnetic interactions in Jahn-Teller crystal. The orbital structure is considered dependent upon the Jahn-Teller distortions of the environment of the Mn~(3+) ions and upon the crystal field. It is shown that the orbital structure of the charge ordered phase and the charge superstructure cause the non-trivial magnetic structure.