| Autor: |
Y, Horibe, M, Shingu, K, Kurushima, H, Ishibashi, N, Ikeda, K, Kato, Y, Motome, N, Furukawa, S, Mori, T, Katsufuji |
| Rok vydání: |
2005 |
| Zdroj: |
Physical review letters. 96(8) |
| ISSN: |
0031-9007 |
| Popis: |
We investigated the charge-ordered (CO) state in spinel AlV2O4 by electron diffraction, synchrotron x-ray diffraction, and magnetic measurements. It was found that the CO structure appearing below 700 K is characterized by the formation of V clusters (heptamers), each of which is consisting of 7 vanadium atoms and is in a spin-singlet state as a total. Theoretical consideration indicates that this unique molecularlike V heptamer is stabilized by a strong bonding of vanadium t(2g) orbitals. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
