Publication | Closed Access
NMR Study of Ferroelectric LiNbO3 and LiTaO3. II
89
Citations
16
References
1968
Year
Crystal StructureEngineeringTheoretical Inorganic ChemistryMagnetic ResonanceLitao3 Single CrystalChemistryInorganic MaterialMultiferroicsFerroelectric ApplicationNuclear Quadrupole ResonanceMaterials ScienceInorganic ChemistryPhysicsNmr StudyAtomic PhysicsQuantum ChemistryLithium SiteCrystallographyCrystal Structure DesignNatural SciencesApplied PhysicsFerroelectric MaterialsLinbo3 Single CrystalFunctional Materials
A study of the 7Li nuclear magnetic resonance in a LiTaO3 single crystal is made and the electric field gradient at the lithium site is determined. Electric-field-gradient calculations indicate that the net charge on the tantalum is +1.21 while that on the oxygen is −0.74. This shows that the tantalate ion is predominantly convalently bonded. The 93Nb resonance in a LiNbO3 single crystal is also studied and the quadrupole coupling constant is found to be 22.02 Mc/sec.
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