Enhanced magnetoelectric coupling in La-modified Bi5Co0.5Fe0.5Ti3O15 multiferroic ceramics
Source abstract
Abstract
Multiferroic properties of La-modified four-layered perovskite Bi5−x La x Fe0.5Co0.5Ti3O15 (0 ≤ x ≤ 1) ceramics were investigated, by analyzing the magnetodielectric effect, magneto-polarization response and magnetoelectric conversion. X-ray diffraction indicated the formation of pure Aurivillius ceramics, and Raman spectroscopy revealed the Bi ions displacement and the crystal structure variation. The enhancement of ferromagnetic and ferroelectric properties was observed in Bi5−x La x Fe0.5Co0.5Ti3O15 after La modification. The evidence for enhanced ME coupling was determined by magnetic field-induced marked variations in the dielectric constant and polarization. A maximum ME coefficient of 1.15 mV/cm·Oe was achieved in Bi4.25La0.75Fe0.5Co0.5Ti3O15 ceramic, which provides the possible promise for novel magnetoelectric device application.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Multiferroics and related materials · Ferroelectric and Piezoelectric Materials · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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