6533b82dfe1ef96bd1291bc8
RESEARCH PRODUCT
High-pressure x-ray absorption spectroscopy study of tin tungstates
L. NatafAleksandr KalinkoTetsuo IrifuneJanis TimoshenkoAlexei KuzminFrançois BaudeletR. KalendarevAndris Anspokssubject
X-ray absorption spectroscopyTungsten CompoundsX-ray spectroscopyMaterials scienceAbsorption spectroscopyAnalytical chemistrychemistry.chemical_elementTungstenCondensed Matter PhysicsAtomic and Molecular Physics and OpticschemistrySpectroscopyTinAbsorption (electromagnetic radiation)Mathematical Physicsdescription
Room-temperature pressure-dependent (0-25 GPa) x-ray absorption spectroscopy at the W -edges of α-SnWO4 and β-SnWO4 was performed using a dispersive setup and a high-pressure nanodiamond anvil cell. The detailed analysis of experimental x-ray absorption near-edge structure and extended x-ray absorption fine structure data suggests that upon increasing pressure, a displacement of tungsten atoms by about 0.2 A toward the center of the WO6 octahedra occurs in α-SnWO4, whereas the coordination of tungsten atoms changes from tetrahedral to distorted octahedral in β-SnWO4.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-08-13 | Physica Scripta |