6533b85cfe1ef96bd12bd5ad
RESEARCH PRODUCT
Pressure dependence of the low-frequency dielectric constant of KNbO_3
Daniel ErrandoneaE. Moyasubject
PermittivityCondensed Matter - Materials SciencePotassium niobateMaterials scienceCondensed matter physicsMaterials Science (cond-mat.mtrl-sci)FOS: Physical sciencesFrequency dependenceDielectricLow frequencyPressure dependenceCondensed Matter PhysicsCapacitanceElectronic Optical and Magnetic Materialschemistry.chemical_compoundchemistrydescription
The effect of pressure on the low-frequency dielectric constant, $\epsilon_0$, of single crystals of KNbO_3 is investigated by means of capacitance measurements. The dielectric constant increases with pressure up to 22.5 kbar, where it exhibits a large value ($\epsilon_0$ = 5000), and then decreases. This change in its behaviour is related to a phase transition induced by pressure. On decompression, the samples do not revert back to the ambient pressure phase.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-09-01 |