Abstract
We argue that in lightly hole doped perovskite-type Mn oxides the holes Mn4+ sites) are surrounded by nearest neighbor Mn3+ sites in which the occupied 3d orbitals have their lobes directed towards the central hole (Mn4+) site and with spins coupled ferromagnetically to the central spin. This composite object, which can be viewed as a combined orbital-spin-lattice polaron, is accompanied by the breathing type (Mn3+) and Jahn-Teller type (Mn3+) local lattice distortions. We present calculations which indicate that for certain doping levels these orbital polarons may crystallize into a charge and orbitally ordered ferromagnetic insulating state.
| Original language | English |
|---|---|
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 63 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2001 Jan 1 |
| Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Cite this
Mizokawa, T., Khomskii, D. I., & Sawatzky, G. A. (2001). Orbital polarons and ferromagnetic insulators in manganites. Physical Review B - Condensed Matter and Materials Physics, 63(2). https://doi.org/10.1103/PhysRevB.63.024403