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 (Mn4+) 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 |
|---|---|
| Article number | 024403 |
| Pages (from-to) | 244031-244035 |
| Number of pages | 5 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 63 |
| Issue number | 2 |
| Publication status | Published - 2001 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Orbital polarons and ferromagnetic insulators in manganites. / Mizokawa, Takashi; Khomskii, D. I.; Sawatzky, G. A.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 63, No. 2, 024403, 2001, p. 244031-244035.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Orbital polarons and ferromagnetic insulators in manganites
AU - Mizokawa, Takashi
AU - Khomskii, D. I.
AU - Sawatzky, G. A.
PY - 2001
Y1 - 2001
N2 - 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 (Mn4+) 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.
AB - 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 (Mn4+) 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.
UR - http://www.scopus.com/inward/record.url?scp=0035127514&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035127514&partnerID=8YFLogxK
M3 - Article
VL - 63
SP - 244031
EP - 244035
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 2
M1 - 024403
ER -