6533b827fe1ef96bd1287273
RESEARCH PRODUCT
Non-Linearity Extremum in Niobium Doped Potassium Tantalate
Mario MaglioneOlivier Bidaultsubject
010302 applied physicsPermittivityRange (particle radiation)Materials sciencePotassiumDopingGeneral EngineeringAnalytical chemistryNiobiumchemistry.chemical_elementStatistical and Nonlinear Physics02 engineering and technologyDielectric021001 nanoscience & nanotechnology01 natural sciences3. Good healthTantalatechemistry[PHYS.HIST]Physics [physics]/Physics archivesPercolation0103 physical sciences0210 nano-technologydescription
We report non-linear dielectric measurements in the KTaO 3 :Nb system (x Nb ≤ 0.05). The non-linear susceptibility diverges at low temperatures and reaches maximum values in the intermediate range (0.0075 ≤ x Nb ≤ 0.02). To account for this extremum non linearity, we propose a model of temperature dependent clusters which fits with a number of experimental reports. We also suggest that this model may be applied to the related compounds SrTiO 3 :Ca and KTaO 3 :Na.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-03-01 | Journal de Physique I |