Revealing a room temperature ferromagnetism in cadmium oxide nanoparticles: An experimental and first-principles study
Type
ArticleAuthors
Bououdina, MohamedDakhel, A
El-Hilo, : Mohammad
Anjum, Dalaver H.

Kanoun, Mohammed Benali
Goumri-Said, Souraya
Date
2015Permanent link to this record
http://hdl.handle.net/10754/347342
Metadata
Show full item recordAbstract
We obtain a single cadmium oxide phase from powder synthesized by a thermal decomposition method of cadmium acetate dehydrate. The yielded powder is annealed in air, vacuum, and H2 gas in order to create point defects. Magnetization-field curves reveal the appearance of diamagnetic behavior with a ferromagnetic component for all the powders. Powder annealing under vacuum and H2 atmosphere leads to a saturation magnetization 1.15 memu g-1 and 1.2 memu g-1 respectively with an increase by 45% and 16% compared to the one annealed in air. We show that annealing in vacuum produces mainly oxygen vacancies while annealing in H2 gas creates mainly Cd vacancy leading to room temperature ferromagnetic (RTFM) component together with known diamagnetic properties. Ab initio calculations performed on the CdO nanoparticles show that the magnetism is governed by polarized hybrid states of the Cd d and O p orbitals together with the vacancy. © The Royal Society of Chemistry 2015.Citation
Revealing a room temperature ferromagnetism in cadmium oxide nanoparticles: An experimental and first-principles study 2015 RSC Adv.Publisher
Royal Society of Chemistry (RSC)Journal
RSC Adv.Additional Links
http://pubs.rsc.org/en/Content/ArticleLanding/2015/RA/C5RA03069Bae974a485f413a2113503eed53cd6c53
10.1039/C5RA03069B