Optical and magnetic properties of Co-doped ZnO nanoparticles and the onset of ferromagnetic order

2017 ◽  
Vol 121 (1) ◽  
pp. 013904 ◽  
Author(s):  
T. J. Castro ◽  
P. A. M. Rodrigues ◽  
A. C. Oliveira ◽  
F. Nakagomi ◽  
J. Mantilla ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Zno Nanoparticles ◽  
Ferromagnetic Order ◽  
Optical And Magnetic Properties ◽  
Doped Zno ◽  
Co Doped

Synthesis of Co-doped ZnO nanoparticles via co-precipitation: Structural, optical and magnetic properties

2015 ◽  
Vol 286 ◽  
pp. 757-765 ◽  
Author(s):  
S. Fabbiyola ◽  
L. John Kennedy ◽  
Udaya Aruldoss ◽  
M. Bououdina ◽  
A.A. Dakhel ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Zno Nanoparticles ◽  
Optical And Magnetic Properties ◽  
Doped Zno ◽  
Co Precipitation ◽  
Co Doped

Investigations on structural, optical and magnetic properties of Fe and Dy co-doped ZnO nanoparticles

2017 ◽  
Vol 29 (5) ◽  
pp. 3850-3855 ◽  
Author(s):  
Jaskaran Singh Malhotra ◽  
Arun Kumar Singh ◽  
Robin Khosla ◽  
Satinder Kumar Sharma ◽  
Gyaneshwar Sharma ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Zno Nanoparticles ◽  
Optical And Magnetic Properties ◽  
Doped Zno ◽  
Co Doped

Excitation-induced tunable luminescence of luminomagnetic Dy and Ce co-doped ZnO nanoparticles

2019 ◽  
Vol 48 (32) ◽  
pp. 12228-12238 ◽  
Author(s):  
R. K. Kalaiezhily ◽  
V. Asvini ◽  
G. Saravanan ◽  
K. Ravichandran
Keyword(s):  
Magnetic Properties ◽  
Zno Nanoparticles ◽  
Combustion Method ◽  
Optical And Magnetic Properties ◽  
Doped Zno ◽  
Co Doped

Here, 1 mol% Dy,Ce co-doped ZnO nanoparticles were synthesized via combustion method and studied their structural, optical and magnetic properties.

Structural, optical and magnetic properties of Cu and V co-doped ZnO nanoparticles

2013 ◽  
Vol 47 ◽  
pp. 1-5 ◽  
Author(s):  
Huilian Liu ◽  
Xin Cheng ◽  
Hongbo Liu ◽  
Jinghai Yang ◽  
Yang Liu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Zno Nanoparticles ◽  
Optical And Magnetic Properties ◽  
Doped Zno ◽  
Co Doped

Photoluminescence and Magnetic Properties of Undoped and (Mn, Co) co-doped ZnO Nanoparticles

2020 ◽  
Vol 16 (4) ◽  
pp. 655-666
Author(s):  
Mona Rekaby
Keyword(s):  
Magnetic Properties ◽  
Zno Nanoparticles ◽  
Room Temperature ◽  
Magnetic Measurements ◽  
Structural Defects ◽  
Ferromagnetic Behavior ◽  
Secondary Phases ◽  
Antiferromagnetic Ordering ◽  
Doped Zno ◽  
Co Doped

Objective: The influence of Manganese (Mn2+) and Cobalt (Co2+) ions doping on the optical and magnetic properties of ZnO nanoparticles was studied. Methods: Nanoparticle samples of type ZnO, Zn0.97Mn0.03O, Zn0.96Mn0.03Co0.01O, Zn0.95Mn0.03 Co0.02O, Zn0.93Mn0.03Co0.04O, and Zn0.91Mn0.03Co0.06O were synthesized using the wet chemical coprecipitation method. Results: X-ray powder diffraction (XRD) patterns revealed that the prepared samples exhibited a single phase of hexagonal wurtzite structure without any existence of secondary phases. Transmission electron microscope (TEM) images clarified that Co doping at high concentrations has the ability to alter the morphologies of the samples from spherical shaped nanoparticles (NPS) to nanorods (NRs) shaped particles. The different vibrational modes of the prepared samples were analyzed through Fourier transform infrared (FTIR) measurements. The optical characteristics and structural defects of the samples were studied through Photoluminescence (PL) spectroscopy. PL results clarified that Mn2+ and Co2+ doping quenched the recombination of electron-hole pairs and enhanced the number of point defects relative to the undoped ZnO sample. Magnetic measurements were carried out at room temperature using a vibrating sample magnetometer (VSM). (Mn, Co) co-doped ZnO samples exhibited a ferromagnetic behavior coupled with paramagnetic and weak diamagnetic contributions. Conclusion: Mn2+ and Co2+ doping enhanced the room temperature Ferromagnetic (RTFM) behavior of ZnO. In addition, the signature for antiferromagnetic ordering between the Co ions was revealed. Moreover, a strong correlation between the magnetic and optical behavior of the (Mn, Co) co-doped ZnO was analyzed.

Structural, optical and magnetic properties of Co-doped ZnO films

2006 ◽  
Vol 296 (2) ◽  
pp. 135-140 ◽  
Author(s):  
Xue-Chao Liu ◽  
Er-Wei Shi ◽  
Zhi-Zhan Chen ◽  
Hua-Wei Zhang ◽  
Li-Xin Song ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Zno Films ◽  
Optical And Magnetic Properties ◽  
Doped Zno ◽  
Co Doped
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