Comparative study on (Na0.47Bi0.47Ba0.06)0.95A0.05TiO3 (A = Sr2+/Ca2+) lead-free ceramics: Scaling behavior of ferroelectric hysteresis loop
Lina Liu, Xiao‐Ming Chen, Ruiyi Jing, Jiangbo Lu, Han‐li Lian, Jianping Zhou, Peng Liu
Abstract
Scaling behavior of dynamic hysteresis of (Na0.47Bi0.47Ba0.06)0.95A0.05TiO3 (A = Sr2+/Ca2+) (expressed as BNBT-Sr and BNBT-Ca, respectively) lead-free ceramics was comparatively studied. BNBT-Ca exhibits typical ferroelectric hysteresis (polarization vs electric field, P–E) loops, while BNBT-Sr shows pinched P–E loops. The two samples' electric field and frequency-dependent dynamic hysteresis behavior were systematically investigated. The dopants difference (Sr2+/Ca2+) produces different scaling behavior of dynamic hysteresis, which is related to the electric field-induced phase transition and domain size between BNBT-Sr and BNBT-Ca.
Topics & Concepts
FerroelectricityHysteresisScalingElectric fieldMaterials scienceCondensed matter physicsPhase transitionFerroelectric ceramicsPolarization (electrochemistry)CeramicAnalytical Chemistry (journal)DielectricChemistryPhysicsOptoelectronicsComposite materialPhysical chemistryChromatographyGeometryQuantum mechanicsMathematicsFerroelectric and Piezoelectric MaterialsDielectric materials and actuatorsAcoustic Wave Resonator Technologies