Journal of Physical Chemistry C, volume 119, issue 51, pages 28679-28684
Half Metallic Ferromagnetism in Eu-Doped CdS Nanoparticles
Rui Zhao
1, 2
,
Pan Wang
1
,
Tianye Yang
1
,
Zhifang Li
1
,
Bingxin Xiao
1
,
Mingzhe Zhang
1
2
College
of Computer, Jilin Normal University, Siping 136000, People’s Republic of China
|
Publication type: Journal Article
Publication date: 2015-12-15
Journal:
Journal of Physical Chemistry C
scimago Q1
SJR: 0.957
CiteScore: 6.5
Impact factor: 3.3
ISSN: 19327447, 19327455
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Physical and Theoretical Chemistry
General Energy
Abstract
Hexagonal wurtzite structured Eu3+-doped CdS nanoparticles (CdS:Eu NPs) were synthesized via a gas–liquid phase chemical deposition method. It is found that as-prepared CdS:Eu NPs exhibit distinct and stronger room-temperature ferromagnetism (RTFM). The ferromagnetism as observed from the zero-field-cooling and field-cooling curves of CdS:Eu NPs has been further confirmed by our first-principles calculations based on the density functional theory. Because of a coupling between the 4f-related spin polarized states and the carriers, the half metallic ferromagnetic CdS:Eu NPs could be a desired material for the use in spintronics. The origin of ferromagnetism in CdS:Eu NPs is attributed primarily to the Eu atoms and partially to the Cd vacancies as well.
Found
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