Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Structural and magnetic properties of Zn-substituted cobalt ferrites prepared by co-precipitation method

Yaseneva, Polina, Bowker, Michael and Hutchings, Graham John 2011. Structural and magnetic properties of Zn-substituted cobalt ferrites prepared by co-precipitation method. Physical Chemistry Chemical Physics 13 (41) , pp. 18609-18614. 10.1039/c1cp21516g

Full text not available from this repository.

Abstract

Zn substituted cobalt ferrite spinels with the general formula ZnxCo1−xFe2O4 (with x varying from 0 to 0.5) were synthesized by a co-precipitation method and calcined at 500 °C and 800 °C. It was found that Zn substitution has a big effect in decreasing the Curie temperature (Tc), from around 440 °C for the undoped sample to 180 °C with x = 0.5. However, these values were also strongly affected by the pre-calcination temperature of the samples, thus TC shifts from 275 °C for the x = 0.3 sample to 296 °C after calcination at 500 °C and 800 °C respectively. These effects are due to facilitation of demagnetisation by substitution of the non-magnetic Zn ions and by production of very small nanoparticles. The latter are removed by higher temperature calcinations and so TC increases.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Subjects: Q Science > QD Chemistry
Publisher: Royal Society of Chemistry
ISSN: 1463-9076
Last Modified: 04 Mar 2018 21:44
URI: http://orca.cf.ac.uk/id/eprint/12415

Citation Data

Cited 48 times in Google Scholar. View in Google Scholar

Cited 54 times in Scopus. View in Scopus. Powered By Scopus® Data

Cited 21 times in Web of Science. View in Web of Science.

Actions (repository staff only)

Edit Item Edit Item