Published June 1991
| Version v1
Journal article
Valence ordering in V5O9 below 120 K
Creators
- 1. National Research Council of Canada, Ottawa, Ontario (Canada)
- 2. AT and T Bell Lab., Murray Hill, NJ (United States)
- 3. l'Univ. J. Fourier, Grenoble (France)
Description
The superstructure in V5O9 below 120 K is due to valence ordering and pair formation. Among the fairly large atomic displacements, one V-V distance across a shared edge between octahedra in a rutile-like chain changes from 2.860(1) angstrom at room temperature to 2.686(1) angstrom at 105 K, a distance comparable to that found in vanadium metal. The observed pairing explains the large known discontinuities in electric conductivity and magnetic susceptibility at the 120 K transition
Additional details
Publishing Information
- Journal Title
- Journal of Solid State Chemistry
- Journal Volume
- 92
- Journal Issue
- 2
- Series
- J. Solid State Chem.
- Journal Page Range
- 380-385
- ISSN
- 0022-4596
- CODEN
- JSSCB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 23030245
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- CRYSTAL STRUCTURE; CRYSTAL-PHASE TRANSFORMATIONS; EXPERIMENTAL DATA; ION PAIRS; LATTICE PARAMETERS; MAGNETIC SUSCEPTIBILITY; SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0065-0273 K; VALENCE; VANADIUM OXIDES; X-RAY DIFFRACTION
- Descriptors DEC
- CHALCOGENIDES; COHERENT SCATTERING; DATA; DIFFRACTION; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; INFORMATION; MAGNETIC PROPERTIES; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; SCATTERING; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; VANADIUM COMPOUNDS