Abstract
The low-temperature superstructure of YFe2 O4-δ was carefully investigated by transmission electron microscopy. We found that the unique superstructure at about 100 K is characterized by 1̄ /142/71/14 -type superlattice reflection spots, suggesting the presence of charge-reordering process. The low-temperature high-resolution images clearly show superlattice modulations in Y-O layers as well as Fe-O layers. The modification of intrabilayer charge interactions due to lattice distortions in Y-O layers is discussed to play a crucial role in the stabilization of long-periodic superstructures at low temperatures.
| Original language | English |
|---|---|
| Article number | 184119 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 82 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - Nov 29 2010 |
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ASJC Scopus subject areas
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
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Direct observation of low-temperature superstructure in spin- and charge-frustrated ferrite YFe2 O4-δ. / Horibe, Y.; Ikeda, Naoshi; Yoshii, K.; Mori, S.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 82, No. 18, 184119, 29.11.2010.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Direct observation of low-temperature superstructure in spin- and charge-frustrated ferrite YFe2 O4-δ
AU - Horibe, Y.
AU - Ikeda, Naoshi
AU - Yoshii, K.
AU - Mori, S.
PY - 2010/11/29
Y1 - 2010/11/29
N2 - The low-temperature superstructure of YFe2 O4-δ was carefully investigated by transmission electron microscopy. We found that the unique superstructure at about 100 K is characterized by 1̄ /142/71/14 -type superlattice reflection spots, suggesting the presence of charge-reordering process. The low-temperature high-resolution images clearly show superlattice modulations in Y-O layers as well as Fe-O layers. The modification of intrabilayer charge interactions due to lattice distortions in Y-O layers is discussed to play a crucial role in the stabilization of long-periodic superstructures at low temperatures.
AB - The low-temperature superstructure of YFe2 O4-δ was carefully investigated by transmission electron microscopy. We found that the unique superstructure at about 100 K is characterized by 1̄ /142/71/14 -type superlattice reflection spots, suggesting the presence of charge-reordering process. The low-temperature high-resolution images clearly show superlattice modulations in Y-O layers as well as Fe-O layers. The modification of intrabilayer charge interactions due to lattice distortions in Y-O layers is discussed to play a crucial role in the stabilization of long-periodic superstructures at low temperatures.
UR - http://www.scopus.com/inward/record.url?scp=78649710795&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78649710795&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.82.184119
DO - 10.1103/PhysRevB.82.184119
M3 - Article
AN - SCOPUS:78649710795
VL - 82
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 18
M1 - 184119
ER -