6533b7d8fe1ef96bd126a315
RESEARCH PRODUCT
Landau theory applied to phase transitions in calcium orthotungstate and isostructural compounds
Daniel Errandoneasubject
DiffractionCondensed Matter - Materials SciencePhase transitionMaterials scienceCondensed matter physicsMaterials Science (cond-mat.mtrl-sci)FOS: Physical sciencesGeneral Physics and Astronomychemistry.chemical_elementCalciumLandau theorychemistryOrder (group theory)Isostructuraldescription
The pressure-driven tetragonal-to-monoclinic phase transition in CaWO4 and related scheelite-structured orthotungstates is analysed in terms of spontaneous strains. Based upon our previous high-pressure x-ray diffraction results and the Landau theory, it is suggested that the scheelite-to-fergusonite transition is of second order in nature.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-02-15 | Europhysics Letters (EPL) |