6533b7d1fe1ef96bd125cd08

RESEARCH PRODUCT

Extended x-ray absorption fine structure spectroscopy and first-principles study of SnWO4

Janis TimoshenkoAndris AnspoksR. KalendarevAlexei KuzminAleksandr Kalinko

subject

Materials scienceExtended X-ray absorption fine structureAbsorption spectroscopyOctahedronDistortionTetrahedronSynchrotron radiationddc:530Atomic physicsCondensed Matter PhysicsSpectroscopyMathematical PhysicsAtomic and Molecular Physics and Optics

description

The local atomic structure in α- and β-SnWO 4 was studied bysynchrotron radiation W L 3 -edge X-ray absorption spectroscopy at 10 and 300 K.Strongly distorted WO 6 octahedra were found in α-SnWO 4 , whereas nearly regularWO 4 tetrahedra were observed in β-SnWO 4 , confirming previous results. Thestructural results obtained were supported by the first-principles calculations,suggesting that the second-order Jahn-Teller effect is responsible for octahedraldistortion.

https://doi.org/10.1088/0031-8949/89/04/044005