6533b829fe1ef96bd128ac4e

RESEARCH PRODUCT

The Effect of Bias Field on Dielectric Response in Lead Ferrotantalate Ceramics

K. BormanisA. I. VaingoltsA. I. BurkhanovAnna Kalvane

subject

Phase transitionMaterials scienceCondensed matter physicsDielectricCondensed Matter PhysicsDielectric responseElectronic Optical and Magnetic MaterialsNuclear magnetic resonanceStructural changeControl and Systems Engineeringvisual_artMaterials ChemistryCeramics and Compositesvisual_art.visual_art_mediumCeramicElectrical and Electronic EngineeringBias fieldMaxima

description

Studies of dielectric properties of PbFe1/2Ta1/2O3 ceramics at low- and infra-low-frequencies under bias field over a wide range of temperatures are reported. Applied bias field is found to broaden the ϵ′(Т) maxima shifting positions Тm of the maximums to higher temperatures. Additional anomalies in the dielectric response are revealed at T<Тm. The anomalies in the vicinity of Тm are related to structural change at phase transition, while those observed at TТm – to magneto-electric interactions in PbFe1/2Ta1/2O3.

https://doi.org/10.1080/10584587.2011.570673