Abstract
We have found that spinel AlV2O4 shows a phase transition at ∼700K with anomalies of transport and magnetic properties. It is clarified that this corresponds to a charge-ordering transition, where the V2.5+ ions are separated into three V2.5-δ ions and one V2.5+3δ ion. This three-one type of charge ordering, which is coupled with rhombohedral distortion along the (111) axis, reduces the high degeneracy of ground states inherent in this spinel structure, and thus can be understood in terms of "charge frustration.".
| Original language | English |
|---|---|
| Pages (from-to) | 1456-1459 |
| Number of pages | 4 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 70 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2001 Jun |
| Externally published | Yes |
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Keywords
- Charge ordering
- Geometrical frustration
- Spinel
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Charge Ordering in the Geometrically Frustrated Spinel AlV2O4 . / Matsuno, Ken Ichiro; Katsufuji, Takuro; Mori, Shigeo; Moritomo, Yutaka; Machida, Akihiko; Nishibori, Eiji; Takata, Masaki; Sakata, Makoto; Yamamoto, Naoki; Takagi, Hidenori.
In: Journal of the Physical Society of Japan, Vol. 70, No. 6, 06.2001, p. 1456-1459.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Charge Ordering in the Geometrically Frustrated Spinel AlV2O4
AU - Matsuno, Ken Ichiro
AU - Katsufuji, Takuro
AU - Mori, Shigeo
AU - Moritomo, Yutaka
AU - Machida, Akihiko
AU - Nishibori, Eiji
AU - Takata, Masaki
AU - Sakata, Makoto
AU - Yamamoto, Naoki
AU - Takagi, Hidenori
PY - 2001/6
Y1 - 2001/6
N2 - We have found that spinel AlV2O4 shows a phase transition at ∼700K with anomalies of transport and magnetic properties. It is clarified that this corresponds to a charge-ordering transition, where the V2.5+ ions are separated into three V2.5-δ ions and one V2.5+3δ ion. This three-one type of charge ordering, which is coupled with rhombohedral distortion along the (111) axis, reduces the high degeneracy of ground states inherent in this spinel structure, and thus can be understood in terms of "charge frustration.".
AB - We have found that spinel AlV2O4 shows a phase transition at ∼700K with anomalies of transport and magnetic properties. It is clarified that this corresponds to a charge-ordering transition, where the V2.5+ ions are separated into three V2.5-δ ions and one V2.5+3δ ion. This three-one type of charge ordering, which is coupled with rhombohedral distortion along the (111) axis, reduces the high degeneracy of ground states inherent in this spinel structure, and thus can be understood in terms of "charge frustration.".
KW - Charge ordering
KW - Geometrical frustration
KW - Spinel
UR - http://www.scopus.com/inward/record.url?scp=0035596445&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035596445&partnerID=8YFLogxK
U2 - 10.1143/JPSJ.70.1456
DO - 10.1143/JPSJ.70.1456
M3 - Article
AN - SCOPUS:0035596445
VL - 70
SP - 1456
EP - 1459
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 6
ER -