Effect of gamma irradiation on electrical and magnetic properties of bismuth doped cobalt ferrite nanoparticles
by Krutika L. Routray; Dirtha Sanyal; P. Mukhopadhyay; Dhrubananda Behera
International Journal of Nano and Biomaterials (IJNBM), Vol. 7, No. 3, 2018

Abstract: Bismuth doped cobalt ferrite nanoparticles have been prepared by sol-gel auto combustion method. An attempt has been made to study the electrical and magnetic transport properties of CoBi_xFe_2-xO₄ nanoparticles. The phase identification and morphological studies have been carried out by X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). Obtained results confirm the presence of single phase spinal structure having space group Fd3m. In addition, FESEM micrographs reveal presence of spherical grains having diameters ranging from 20-130 nm. Further, dielectric studies of the prepared nanoparticles have been performed which suggests different types of conduction mechanism of the charge carriers. Results demonstrate the presence of dielectric relaxation, which is found to be of non-debye type. Apart from these, Mossbauer study is conducted to observe the distribution of the cobalt and bismuth in the spinel ferrite. Moreover, in this study, effect of gamma irradiation on structural, dielectric and Mossbauer properties for various concentration of Bi have been discussed in detail.

Online publication date: Thu, 23-Aug-2018

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 Nano and Biomaterials (IJNBM):
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