Matches in SemOpenAlex for { <https://semopenalex.org/work/W2022287311> ?p ?o ?g. }
- W2022287311 endingPage "427" @default.
- W2022287311 startingPage "418" @default.
- W2022287311 abstract "In the present work, we report on structural, dielectric, impedance spectroscopic studies and magnetoelectric properties of (1−x) La0.75Ca0.15Sr0.05Ba0.05MnO3 (LCSBMO)+(x) Ni0.9Zn0.1Fe2O4 (NZFO) (x=0.0, 0.1, 0.2, 0.4, 0.6, 0.8 and 1.0) composites. The composites were prepared by the solid state reaction route. The coexistence of a cubic spinel NZFO phase and a tetragonal LCSBMO phase in the composites is confirmed by the X-ray diffraction measurement. Scanning electron microscopy images reveal that NZFO particles were distributed non-uniformly with some porosity in the LCSBMO matrix. Frequency dependent dielectric constant shows usual dielectric dispersion behavior, which may be attributed to the Maxwell–Wagner type interfacial polarization. At higher frequencies (≥105 Hz), due to electronic and ionic polarizations only, the dielectric constant is independent of frequency. Complex impedance shows semicircular arc due to the domination of grain boundary resistance and electric modulus confirms the presence of hopping conduction. The AC conductivity (σAC) obeys the power law and the linearity of logω2 versus logσAC plots indicates that the conduction mechanism is due to small polaron hopping. Low frequency dispersion in permeability is due to domain wall motion and the frequency stability of permeability indicates that the arrangement of the magnetic moment in the polarization process can keep up with the external field. The maximum magnetoelectric voltage coefficient of ~40 mV Oe−1 cm−1 for x=0.8." @default.
- W2022287311 created "2016-06-24" @default.
- W2022287311 creator A5036468178 @default.
- W2022287311 creator A5043067843 @default.
- W2022287311 creator A5043868604 @default.
- W2022287311 creator A5049272192 @default.
- W2022287311 date "2015-07-01" @default.
- W2022287311 modified "2023-09-27" @default.
- W2022287311 title "Synthesis and characterization of La 0.75 Ca 0.15 Sr 0.05 Ba 0.05 MnO 3 –Ni 0.9 Zn 0.1 Fe 2 O 4 multiferroic composites" @default.
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