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RESEARCH PRODUCT

Effects of VTE Treatment on Composition of Lithium Tantalate Single Crystals

V. A. SandlerK. BormanisO. B. ShcherbinaN. V. SidorovM. N. Palatnikov

subject

chemistry.chemical_compoundMaterials scienceThin layerschemistryDiffusionLithium tantalateAnalytical chemistryCoercivityCondensed Matter PhysicsStoichiometryElectronic Optical and Magnetic MaterialsIon

description

The vapour transport equilibration (VTE) is used to change the Li/Ta ratio in lithium tantalate single crystals of different crystallographic orientations (Z-cut and Y/128°-cut). Treatment by VTE is shown to provide thin layers in lithium tantalate plates composition of which is close to stoichiometric while the values of the coercive field are different, much smaller compared with congruent single crystals. There are several mechanisms of diffusion of the Li+ ions in LiTaO3 under conditions of VTE the contribution of each being dependent on the crystallographic orientation of the sample.

yearjournalcountryeditionlanguage
2011-01-01Ferroelectrics
https://doi.org/10.1080/00150193.2011.578480