First-principles study on ferromagnetism in nitrogen-doped CdO

Revealing a room temperature ferromagnetism in cadmium oxide nanoparticles: an experimental and first-principles study

“…It is well known that bulk CdO powder is diamagnetic oxide with a magnetic susceptibility approximately -0.232 ×10 -6 cgs at 300 K [21]. Recently, Electronic structure calculations show that the CdO doped by a nonmagnetic 2p light element (N) lead to spin magnetic moment, and the p-d exchange like p-p coupling interaction was suggested to be responsible for the ferromagnetism [22].…”

“…It is well known that bulk CdO powder is diamagnetic oxide with a magnetic susceptibility approximately À0.232 Â 10 À6 cgs at 300 K. 21 Recently, electronic structure calculations show that the CdO doped by a nonmagnetic 2p light element (N) lead to spin magnetic moment, and the p-d exchange like p-p coupling interaction was suggested to be responsible for the ferromagnetism. 22 In the present work, CdO powder was prepared by thermal decomposition method in order to discover the possibility of the appearance of RTFM. For that purpose, structural, optical, and magnetic properties of CdO powder as well as CdO powder annealed under vacuum and H 2 gas were systematically investigated.…”

Prediction of half-metallic ferromagnetism in C-doped CdS nanowire

“…This promotes the search for other dopants, which do not contain ions with partially lled d or f bands. Recently, unexpected roomtemperature ferromagnetism induced by vacancy in CaO, 15 HfO, 16 TiO 2 , 17 BN, 18 GaN, 19 and 2p light elements doped ZnO, 20,21 ZnS, 22 CdO, 23 MgO 24 SnO 2 , 25 and TiO 2 , 26 were reported in semiconductors without TM dopants, which was referred to as sp/d 0 magnetism since the magnetism was not induced by the localized unpaired electrons in d or f states of TM or rare-earth (RE) metals. These sp/d 0 FM properties are very intriguing because they challenge our understanding of the physical mechanism of ferromagnetism.…”