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- Title
Atomic displacements in the V<sub>52</sub>O<sub>64</sub> superstructure and the short-range order in superstoichiometric cubic VO<sub> y</sub> vanadium monoxide with metal vacancies.
- Authors
Gusev, A. I.
- Abstract
Atomic displacements in the lattice of the tetragonal V52O64 superstructure have been experimentally determined. It has been found that atomic displacement waves, which are attributed to the formation of the short-range displacement order, appear in the vanadium and oxygen sublattices of this superstructure. It has been shown that the V52O64 superstructure is formed on the basis of disordered superstoichiometric cubic vanadium monoxide with the short-range order in the metallic sublattice. The character of the short-range order is such that vanadium atoms occupying tetrahedral positions are in the environment of four vacant sites of the vanadium sublattice. This means that the superstoichiometric VO>1.0 vanadium monoxide has a cubic structure differing from the B1-type structure characteristic of most of the strongly nonstoichiometric cubic compounds MX y (X = C, N, O) of transition metals.
- Subjects
VANADIUM; TRANSITION metals; CONSTITUTION of matter; STOICHIOMETRY; OXYGEN
- Publication
JETP Letters, 2009, Vol 90, Issue 5, p376
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364009170135