Effect of Al-ion substitution on structural and magnetic properties of Co–Ni ferrites nanoparticles prepared via citrate precursor method

2014 ◽  
Vol 146 (3) ◽  
pp. 224-229 ◽  
Author(s):  
A.M. Wahba ◽  
N. Aboulfotoh Ali ◽  
M.M. Eltabey
Keyword(s):  
Magnetic Properties ◽  
Precursor Method ◽  
Ion Substitution ◽  
Structural And Magnetic Properties ◽  
Citrate Precursor ◽  
Citrate Precursor Method

STRUCTURAL AND MAGNETIC PROPERTIES OF (R0.5A0.5)NIO3 PEROVSKITES (R = GD, YB AND A = CE, TH)

2007 ◽  
Vol 21 (18n19) ◽  
pp. 3443-3447
Author(s):  
J. W. CHEN ◽  
H. M. LIU ◽  
H.-C. I. KAO ◽  
H. S. SHEU ◽  
J. F. LEE ◽  
...  
Keyword(s):  
Grain Size ◽  
Room Temperature ◽  
Unit Cell Volume ◽  
Bond Angle ◽  
Mixed Valence ◽  
Monoclinic Symmetry ◽  
Precursor Method ◽  
Structural And Magnetic Properties ◽  
Citrate Precursor ◽  
Citrate Precursor Method

Four perovskite compounds with nominal compositions of ( Gd 0.5 Th 0.5) NiO 3, ( Gd 0.5 Ce 0.5) NiO 3, ( Yb 0.5 Th 0.5) NiO 3 and ( Yb 0.5 Ce 0.5) NiO 3 were prepared by a polymeric citrate precursor method. They were either slow-cooled in the furnace or quenched to room temperature. All of them have monoclinic symmetry. Quenched samples have a slightly bigger unit cell volume and longer Ni-O bond length, and a smaller grain size than that of the furnace-cooled compounds. All samples are paramagnetic insulators in the range of 2 K to 300 K. The Th containing compounds have larger tolerance factor and Ni (1)– O (1)– Ni (2) bond angle than that of the Ce containing compounds. No mixed valence of Ce, Th and Ni is observed in these samples.

Electrical and magnetic properties of Mn–Ni–Zn ferrites processed by citrate precursor method

2003 ◽  
Vol 57 (5-6) ◽  
pp. 1040-1044 ◽  
Author(s):  
Amarendra K. Singh ◽  
A. Verma ◽  
O.P. Thakur ◽  
Chandra Prakash ◽  
T.C. Goel ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Precursor Method ◽  
Electrical And Magnetic Properties ◽  
Citrate Precursor ◽  
Citrate Precursor Method

Magnetic properties of nano-crystalline Li0.35Cd0.3Fe2.35O4 ferrite prepared by modified citrate precursor method

2010 ◽  
Vol 122 (1) ◽  
pp. 133-137 ◽  
Author(s):  
Vivek Verma ◽  
M. Abdullah Dar ◽  
Vibhav Pandey ◽  
Anterpreet Singh ◽  
S. Annapoorni ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Precursor Method ◽  
Nano Crystalline ◽  
Citrate Precursor ◽  
Citrate Precursor Method
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