12 citations · 12 across the 1 of their papers we have counts for
4 papers
Theory of Raman Scattering from Orbital Excitations in Manganese Oxides
S. Okamoto, S. Ishihara, S. Maekawa
We present a theory of the Raman scattering from the orbital wave excitations in manganese oxides. Two excitation processes of the Raman scattering are proposed. The Raman scatteri…
Orbital Structure and Magnetic Ordering in Layered Manganites: Universal Correlation and Its Mechanism
S. Okamoto, S. Ishihara, S. Maekawa
Correlation between orbital structure and magnetic ordering in bilayered manganites is examined. A level separation between the and orbitals in a Mn…
Phase Transition in Perovskite Manganites with Orbital Degree of Freedom
S. Okamoto, S. Ishihara, S. Maekawa
Roles of orbital degree of freedom of Mn ions in phase transition as a function of temperature and hole concentration in perovskite manganites are studied. It is shown that the orb…
Orbital Degree of Freedom and Phase Separation in Ferromagnetic Manganites at Finite Temperatures
S. Okamoto, S. Ishihara, S. Maekawa
The spin and orbital phase diagram for perovskite manganites are investigated as a function of temperature and hole concentration. The superexchange and double exchange interaction…