Abstract
The evolution of spin- and orbital-ordered states has been investigated for a series of insulating perovskites with a large -type distortion is regarded as a frustrated spin system having ferromagnetic nearest-neighbor and antiferromagnetic (AF) next-nearest-neighbor (NNN) interactions within a plane. The staggered orbital order associated with the -type distortion induces the anisotropic NNN interaction, and yields unique sinusoidal and up-up-down-down AF ordered states in the distorted perovskites with configuration.
- Received 11 June 2003
DOI:https://doi.org/10.1103/PhysRevB.68.060403
©2003 American Physical Society