Structural, microstructural and multiferroic properties of BiFeO3–CoFe2O4 composites

Piezoelectric, magnetic and magnetoelectric properties of a new lead-free multiferroic (1-x) Ba0.95Ca0.05Ti0.89Sn0.11O3—(x) CoFe2O4 particulate composites

“…The Peaks on the lower-frequency side (< 300 cm -1 ) are associated with Ba/Ca-O vibrations, while those on the higher wavenumber side correspond to Ti/Sn-O vibrations [24]. The obtained Raman spectra for all compositions constitute Raman modes of the pure BCTSn and CFO phases individually without any strange Raman bands [25]. These results support the successful preparation of (0-3) type connectivity for BCTSn-CFO multiferroic composite materials.…”

Novel Insights of Enhanced Magnetization and Magnetoelectric Coupling in the Nanocomposite of BiFeO3 with Lanthanum Strontium Manganite

“…The presence of defects and impurities in composites is reported to result in an enhanced leakage current affecting appreciably the desired magnetoelectric coupling effects in the composites of BiFeO 3 containing other ferromagnetic/piezoelectric-based particles. [15,[20][21][22] Nanoparticles of BiFeO 3 have been reported to exhibit weak ferromagnetic properties, [23][24][25] while quite a few research work have demonstrated that the nanoparticles of BiFeO 3 prepared through selective methods display ferroelectric ordering in addition to weak ferromagnetic properties. [23,24] Importantly, an appreciable magnetoelectric coupling effects have been observed in such nanoparticles of BiFeO 3 .…”

“…The presence of defects and impurities in composites is reported to result in an enhanced leakage current affecting appreciably the desired magnetoelectric coupling effects in the composites of BiFeO 3 containing other ferromagnetic/piezoelectric‐based particles. [ 15,20–22 ]…”

An effective strategy for the development of multiferroic composite nanostructures with enhanced magnetoelectric coupling performance: a perovskite–spinel approach

“…It has room temperature spontaneous ferroelectric and antiferromagnetic nature. It exhibits ferroelectric polarization 100μCcm -2 and Curie temperature of ~1103K due to paired electrons in the outermost 6s orbital of Bi 3+ cation and the material behaves feebly fantiferromagnetic behavior below its Neel temperature (T N~ 643K) due to unpaired d-orbital electronic distribution of Fe 3+ cation 16,17 . Though the ME interactions are reported in BiFeO 3 18,19 , weak ferromagnetic nature 20 , poor ferroelectric reliability 21 and weak ME coupling hinders its practical applications.…”