Multiferroic and magnetoelectric properties of BiFeO^sub 3^-CoFe^sub 2^O^sub 4^-poly(vinylidene-flouride) composite films

Multiferroic thick nanocomposite films of (1 - x)(0.3CoFe2O4-0.7BiFeO3)-xPolyvinylidene difluoride (CFO-BFO/PVDF) with x variations 0.20, 0.30 and 0.40 were synthesized using hot press method. Detailed measurements of structural, dielectric, magnetic and magnetoelectric data have been reported. Stru...

Full description

Saved in:
Bibliographic Details
Published in:European polymer journal 2017-06, Vol.91, p.100
Main Authors: Adhlakha, Nidhi, Yadav, KL, Truccato, Marco, Manjusha, Rajak, Piu, Battiato, Alfio, Vittone, Ettore
Format: Article
Language:English
Subjects:
Ceramics
Deoxidizing
Dielectric loss
Dielectrics
Magnetic properties
Microstructure
Multiferroic materials
Nanocomposites
Structural analysis
Thick films
Vinylidene
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Multiferroic thick nanocomposite films of (1 - x)(0.3CoFe2O4-0.7BiFeO3)-xPolyvinylidene difluoride (CFO-BFO/PVDF) with x variations 0.20, 0.30 and 0.40 were synthesized using hot press method. Detailed measurements of structural, dielectric, magnetic and magnetoelectric data have been reported. Structural characterization reveals the presence of all the three distinct phases viz. CFO, BFO and PVDF. The dielectric loss as low as 0.05 has been observed for composite film with 40 mol% of PVDF. The AC conductivity (5.9 × 10-8 Ω-1 cm-1) of composite film (x = 0.40) is found to be much lower as compared to CFO-BFO ceramic. The electric poling of composite film (with x = 0.30) leads to substantial increase in saturation (2Ms) and remnant magnetization (2Mr). A significant magnetoelectric effect with magnetoelectric voltage coefficient (αME) ~ 22.128 mV/cm Oe has been observed for composite film with x = 0.40, which is possibly a consequence of implicit mechanical interaction between CFO and BFO through PVDF matrix. Hence these nanocomposite films hold a great potential to be promising candidates for multiferroic devices.
ISSN:0014-3057
1873-1945