2 papers
cond-mat.str-el1999
Orbital Polarization and Fluctuation in Manganese Oxides
Ryo Maezono, Naoto Nagaosa
In a form which include the mother compound, we studied the extended Hubbard-type model with the orbital degeneracy for any doping concentration. Meanfield phase diagram and the sp…
cond-mat.str-el1998
Phase Diagram in Manganese Oxides
Ryo Maezono, Sumio Ishihara, Naoto Nagaosa
We study theoretically the phase diagram of perovskite manganites taking into account the double degeneracy of the orbitals in a ion. A rich phase diagram is obtain…