Spontaneous formation of vanadium "molecules" in a geometrically frustrated crystal: AlV2O4

Y. Horibe*, M. Shingu, K. Kurushima, H. Ishibashi, N. Ikeda, K. Kato, Y. Motome, N. Furukawa, S. Mori, T. Katsufuji

*この研究の対応する著者

研究成果: Article査読

102 被引用数 (Scopus)

抄録

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 t2g orbitals.

本文言語English
論文番号086406
ジャーナルPhysical Review Letters
96
8
DOI
出版ステータスPublished - 2006

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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