Characterization and property measurements of (y) Co0.9Cd0.1Fe2O4+(1−y) PZT ME composites

Kamble, Y.B.; Chougule, S.S.; Chougule, B.K.

doi:10.1016/j.jallcom.2008.09.156

Cited by 20 publications

(5 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, much experimental effort has been spent on investigating some new composite multiferroics [5]. Since the first multiferroic composite consisting of a piezoelectric phase BaTiO 3 and a ferromagnetic phase CoFe 2 O 4 was reported in the 1970s [6], a variety of multiferroic composites such as Co 0.9 Cd 0.1 Fe 2 O 4 /PZT composites [7], * Corresponding author. Tel.…”

Section: Introductionmentioning

confidence: 99%

Multiferroic composites in nano–microscale with non-solid solution by Co-ferrite and (K0.5Na0.5)NbO3-based ferroelectric matrix

Zhou

Zhang

et al. 2009

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Multiferroic composites in nano–microscale with non-solid solution by Co-ferrite and (K0.5Na0.5)NbO3-based ferroelectric matrix

Zhou

Zhang

et al. 2009

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…The high value of ) (E ε ∆ observed at lower frequencies is explained on the basis of space charge polarization due to inhomogeneous dielectric structure. The inhomogeneities present are grain structure, porosity, etc [16].…”

Section: Resultsmentioning

confidence: 99%

Dielectric Tunability in Ferromagnetic-Ferroelectric Composite System

Zhou

et al. 2011

AMM

View full text Add to dashboard Cite

A new kind of lead-free ferromagnetic-ferroelectric (FM/FE) composite was successfully prepared by incorporating the dispersed 0.15Ni0.98Co0.02Fe2O4 (NCF) ferromagnetic nanoparticles into 0.85(K0.5Na0.5)NbO3-LiSbO3 (KNN-LS) ferroelectric micromatrix. The relative dielectric constant (εr) of the ceramic as a function of frequency (0.1 -200 kHz) under different dc bias electric field strengths was investigated in detail. εr increases with increasing dc bias electric field, while tanδ decreases with the increase in frequency. At room temperature, the high dielectric tunability (KD=11.41%) and high figure of merit (FOM=15.66) under the low dc electric field of 3 kV/cm, clearly imply that these ceramics are promising materials for tunable microwave device applications.

show abstract

“…25 Inhomogeneous dielectric results in space charge polarization which gives high value of dielectric constant at low frequencies. 26 Frequency-dependent dielectric constant increases with increasing Co doping which takes maximum value for x ¼ 0:07 composition.…”

Section: Dielectric Responsementioning

confidence: 98%

Investigation of structural phase evolution and dielectric response of Co-doped BaTiO₃

Mansuri

Bhatti

et al. 2018

J. Adv. Dielect.

View full text Add to dashboard Cite

In the present study, we have synthesized polycrystalline samples of BaTi[Formula: see text]CoxO3 (BTCO) ([Formula: see text], 0.01, 0.03, 0.05, 0.07 and 0.10) with standard solid state reaction technique. The obtained samples are characterized by X-ray diffraction (XRD) and Raman spectroscopy for structural study. The detailed structural analysis has been performed by Rietveld refinement using Fullprof program. We observed an increase in lattice parameters, which results due to substitution of Co[Formula: see text] with large ionic radii (0.9[Formula: see text]Å) for smaller ionic radii (0.6[Formula: see text]Å) Ti[Formula: see text]. Moreover, peak at 45.5∘ shifts to 45∘ on Co doping, which is due to structure phase transition from tetragonal to cubic. Raman study infers that the intensity of characteristic peaks decreases and line width increases with Co doping. The bands linked with the tetragonal structure (305[Formula: see text]cm[Formula: see text]) decreased due to the tetragonal-to-cubic phase transition with Co doping. Our structural study reveals the expansion of BTCO unit cell and tetragonal-to-cubic phase transformation takes place. The results from different characterization techniques are conclusive and show structural evolution with Co doping. The samples are further characterized by dielectric spectroscopy, dielectric measurement reveals the increase of dielectric constant and transition [Formula: see text]C is observed for Barium titanate (BaTiO3), whereas transition disappears with Co doping. Both temperature and frequency-dependent tangent loss is also studied.

show abstract

Characterization and property measurements of (y) Co0.9Cd0.1Fe2O4+(1−y) PZT ME composites

Cited by 20 publications

References 18 publications

Multiferroic composites in nano–microscale with non-solid solution by Co-ferrite and (K0.5Na0.5)NbO3-based ferroelectric matrix

Multiferroic composites in nano–microscale with non-solid solution by Co-ferrite and (K0.5Na0.5)NbO3-based ferroelectric matrix

Dielectric Tunability in Ferromagnetic-Ferroelectric Composite System

Investigation of structural phase evolution and dielectric response of Co-doped BaTiO₃

Contact Info

Product

Resources

About

Characterization and property measurements of (y) Co0.9Cd0.1Fe2O4+(1−y) PZT ME composites

Cited by 20 publications

References 18 publications

Multiferroic composites in nano–microscale with non-solid solution by Co-ferrite and (K0.5Na0.5)NbO3-based ferroelectric matrix

Multiferroic composites in nano–microscale with non-solid solution by Co-ferrite and (K0.5Na0.5)NbO3-based ferroelectric matrix

Dielectric Tunability in Ferromagnetic-Ferroelectric Composite System

Investigation of structural phase evolution and dielectric response of Co-doped BaTiO3

Contact Info

Product

Resources

About

Investigation of structural phase evolution and dielectric response of Co-doped BaTiO₃