Effect of spin-orbit interaction on (4d)~3- and (5d) ~3-based transition-metal oxides

摘要

The effects of a spin-orbit interaction on transition-metal ions of (4d)~3- and (5d)~3-based oxides in which three electrons occupy t_(2g) orbitals are studied. The amplitude of the magnetic moment of d electrons on the 5d and 4d orbitals is estimated by numerical diagonalization. It is found that the magnetic moment is reduced by the spin-orbit interaction. It is suggested that (4d)~3- and (5d) ~3-based oxides are located in the middle of the L-S and J-J coupling schemes.