Magnetoelectricity of barium titanate/cobalt ferrite nanoparticles incorporated into poly(vinylidene fluoride-co-trifluoroethylene) copolymer films
by Morad Etier
International Journal of Materials Engineering Innovation (IJMATEI), Vol. 11, No. 4, 2020

Abstract: Incorporating ferroelectric and ferromagnetic nanoparticles into copolymers can produce composites with novel properties for broad applications especially in electronics. In this research, nanoparticles of barium titanate (BTO) and cobalt iron oxide (CFO) were chemically synthesised and then individually incorporated in poly(vinylidene fluoride-co-trifluoroethylene) to form multi-layered magnetoelectric film. BTO-P(VDF-TrFE)/CFO-P(VDF-TrFE)/BTO-P(VDF-TrFE) sandwich type films - (20-30 μm in thickness each) - were synthesised using a home-made simple mould casting and blending techniques. The addition of BTO and CFO nanoparticles to the polymer enhanced the dielectric constant, but lowered the ferroelectric-paraelectric phase transition temperature of the P(VDF-TrFE). For the sandwich type film, a maximum value of direct out of plane magnetoelectric coupling coefficient (α₃₃) 145 mV/cm·Oe was measured at ambient temperature. For such structure, the perfect isolating condition of the cobalt ferrite piezomagnetic phase and the proper contact and bonding between the piezoelectric and magnetostrictive phases enhanced the magnetoelectric effect. The fabricated film could be a potential candidate for magnetoelectric devices and sensor applications.

Online publication date: Mon, 04-Jan-2021

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Materials Engineering Innovation (IJMATEI):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com