Literature DB >> 16606207

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

Y Horibe1, M Shingu, K Kurushima, H Ishibashi, N Ikeda, K Kato, Y Motome, N Furukawa, S Mori, T Katsufuji.   

Abstract

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.

Entities:  

Year:  2006        PMID： 16606207     DOI： 10.1103/PhysRevLett.96.086406

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN： 0031-9007            Impact factor:   9.161


  2 in total

1.  Regular-triangle trimer and charge order preserving the Anderson condition in the pyrochlore structure of CsW2O6.

Authors:  Yoshihiko Okamoto; Haruki Amano; Naoyuki Katayama; Hiroshi Sawa; Kenta Niki; Rikuto Mitoka; Hisatomo Harima; Takumi Hasegawa; Norio Ogita; Yu Tanaka; Masashi Takigawa; Yasunori Yokoyama; Kanji Takehana; Yasutaka Imanaka; Yuto Nakamura; Hideo Kishida; Koshi Takenaka
Journal:  Nat Commun       Date:  2020-06-19       Impact factor: 14.919

2.  Cu(Ir₁ - xCrx)₂S₄: a model system for studying nanoscale phase coexistence at the metal-insulator transition.

Authors:  E S Božin; K R Knox; P Juhás; Y S Hor; J F Mitchell; S J L Billinge
Journal:  Sci Rep       Date:  2014-02-12       Impact factor: 4.379
  2 in total

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