Abstract
Electronic and magnetic properties are systematically investigated for doped manganites by changing the nominal hole concentration and the averaged ionic radius of the perovskite site or the one-electron bandwidth In the heavily doped region we observed a layered-type (-type) antiferromagnetic state with metallic conductivity ( at 5 K for ). This observation suggests that the antiferromagnetic metallic (AFM) state is the alternative ground state for doped manganites, besides the ferromagnetic metallic (FM) state.
- Received 6 January 1998
DOI:https://doi.org/10.1103/PhysRevB.57.R5594
©1998 American Physical Society