scholarly journals Structural and magnetic properties ofNanocrystalline Nickel ferriteprepared byCitrate Sol–geland Solid- state reaction techniques

2018 ◽  
Vol 35 (part 1) ◽  
pp. 112-125
Author(s):  
R. Hamdy ◽  
M. Osman ◽  
Y. abbas ◽  
M. Ahmed
Keyword(s):  
Magnetic Properties ◽  
Solid State ◽  
Solid State Reaction ◽  
Structural And Magnetic Properties

Effect of Temperature on the Structural and Magnetic Properties of Co0.7Zn0.3Fe2O4 Ceramic Prepared from Solid State Reaction

2015 ◽  
Vol 804 ◽  
pp. 38-41
Author(s):  
Pattarinee Klumdoung ◽  
Piyapong Pankaew
Keyword(s):  
Crystal Structure ◽  
Solid Solution ◽  
Magnetic Properties ◽  
Solid State ◽  
Solid State Reaction ◽  
Sintering Temperature ◽  
Effect Of Temperature ◽  
Dense Structure ◽  
Paramagnetic Behavior ◽  
Structural And Magnetic Properties

In present study, the Co0.7Zn0.3Fe2O4 ceramic was prepared using solid state reaction. The crystal structure of prepared ceramic indicated as solid solution. The SEM result indicated the dense structure of prepared ceramic as increased sintering temperature. For VSM result of Co0.7Zn0.3Fe2O4 ceramic indicated the super paramagnetic behavior with high magnetization. These results could lead us to the development of Co0.7Zn0.3Fe2O4 ceramic preparation optimized for specific applications.

scholarly journals Structural and Magnetic Properties of Ni0.6Zn0.4Fe2O4Ferrite Prepared by Solid State Reaction and Sol-gel

2014 ◽  
Vol 19 (1) ◽  
pp. 64-67 ◽  
Author(s):  
Yoon Mi Kwon ◽  
Min-Young Lee ◽  
Millaty Mustaqima ◽  
Chunli Liu ◽  
Bo Wha Lee
Keyword(s):  
Magnetic Properties ◽  
Solid State ◽  
Solid State Reaction ◽  
Sol Gel ◽  
Structural And Magnetic Properties

scholarly journals Structural and Magnetic Properties of Ni DopedSnO2

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
M. Kuppan ◽  
S. Kaleemulla ◽  
N. Madhusudhana Rao ◽  
N. Sai Krishna ◽  
M. Rigana Begam ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Solid State ◽  
Solid State Reaction ◽  
Room Temperature ◽  
Optical Band Gap ◽  
Vibrating Sample Magnetometer ◽  
Ni Doping ◽  
Powder Samples ◽  
Optical And Magnetic Properties ◽  
Structural And Magnetic Properties

Nickel (Ni) doped SnO2powder samples were prepared using solid-state reaction with dopant concentrations in the range of 3 at.% to 15 at.%. The influence of Ni doping on structural, optical, and magnetic properties of the powder samples has been investigated. All the Ni doped powder samples exhibited tetragonal structure of SnO2. A decrease in optical band gap was observed with increase of Ni doping levels. The vibrating sample magnetometer measurements revealed that the Ni doped SnO2powder samples were ferromagnetic at room temperature.

Isolated and Grouped Co Spins in Polycrystalline Zn1-xCoxO Oxides

2006 ◽  
Vol 52 ◽  
pp. 27-30
Author(s):  
Yue Bin Zhang ◽  
Thirumany Sritharan ◽  
Sean Li
Keyword(s):  
Magnetic Properties ◽  
Solid State ◽  
Solid State Reaction ◽  
Nearest Neighbor ◽  
Magnetic Coupling ◽  
Host Lattice ◽  
Precise Nature ◽  
Impurity Modes ◽  
Random Manner ◽  
Structural And Magnetic Properties

Polycrystalline stoichiometric Co-substituted ZnO oxides have been synthesized by solid state reaction via sintering ZnO and Co powders in air. The precise nature of magnetic coupling is determined by studying carefully structural and magnetic properties. The magnetization as a function of temperature for Zn1-xCoxO (x = 0.02, 0.05, 0.0625 and 0.10) can be fitted well to a model with a paramagnetic Curie term, an antiferromagnetic Curie-Weiss term and a diamagnetic constant, which could arise from spins of isolated Co ions, grouped Co ions that are in nearest neighbor positions and a diamagnetic background, respectively. The substitution of Co at the Zn sites does not occur in a completely random manner but the Co ions appear to have a tendency for grouping. It is interesting to note in Raman measurements that host lattice defects with 2 distinct impurity modes may be induced by isolated and grouped Co spins.

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