Shyam Thakur - Academia.edu (original) (raw)
Uploads
Papers by Shyam Thakur
Materials Chemistry and Physics, 2018
The average Crystallite size was found to be in the range 48e56 nm. The optimized value of coerci... more The average Crystallite size was found to be in the range 48e56 nm. The optimized value of coercivity is 102 Oe with the excess of iron. Iron deficiency magnetism reduced to paramagnetic behavior. BiFe 1.2 O 3 shows more typical P-E loop indicating low leakage current. BiFe 1.2 O 3 is optimized for enhanced magnetic and electrical properties.
Ceramics International, 2018
Effect of non-magnetic Al 3+ doping on structural, optical, electrical, dielectric and magnetic p... more Effect of non-magnetic Al 3+ doping on structural, optical, electrical, dielectric and magnetic properties of BiFeO 3 ceramics, Ceramics International,
Ceramics International, 2015
Cd doped Mn-Zn nanoferrites of the composition Mn 0.4 Zn 0.6 Cd x Fe 2-x O 4 , with (0.0 x 0.5) h... more Cd doped Mn-Zn nanoferrites of the composition Mn 0.4 Zn 0.6 Cd x Fe 2-x O 4 , with (0.0 x 0.5) have been synthesized by a co-precipitation method. The x-ray diffraction patterns of the samples confirmed the formation of single-phase cubic spinel structure. Average crystallite size is found to be in the range of 35-40 nm, which is in consistence with transmission electron microscopy results. The average grain size as calculated from scanning electron microscopy is found to be 100 nm. DC resistivity is found to be about 10 times higher than the reported values. Specific saturation magnetization is observed to be increasing from 25.23 emu/g to 48.98 emu/g with cadmium concentration. Magnetic moment is increasing from 1.07 BM to 2.35 BM with increasing concentration of Cd 2+ ions. Variation of anisotropy constant as a function of concentration of doping is also discussed. Comparatively higher DC resistivity, refined crystallite size and improved magnetization are the main achievements of the present investigation.
Materials Chemistry and Physics, 2018
The average Crystallite size was found to be in the range 48e56 nm. The optimized value of coerci... more The average Crystallite size was found to be in the range 48e56 nm. The optimized value of coercivity is 102 Oe with the excess of iron. Iron deficiency magnetism reduced to paramagnetic behavior. BiFe 1.2 O 3 shows more typical P-E loop indicating low leakage current. BiFe 1.2 O 3 is optimized for enhanced magnetic and electrical properties.
Ceramics International, 2018
Effect of non-magnetic Al 3+ doping on structural, optical, electrical, dielectric and magnetic p... more Effect of non-magnetic Al 3+ doping on structural, optical, electrical, dielectric and magnetic properties of BiFeO 3 ceramics, Ceramics International,
Ceramics International, 2015
Cd doped Mn-Zn nanoferrites of the composition Mn 0.4 Zn 0.6 Cd x Fe 2-x O 4 , with (0.0 x 0.5) h... more Cd doped Mn-Zn nanoferrites of the composition Mn 0.4 Zn 0.6 Cd x Fe 2-x O 4 , with (0.0 x 0.5) have been synthesized by a co-precipitation method. The x-ray diffraction patterns of the samples confirmed the formation of single-phase cubic spinel structure. Average crystallite size is found to be in the range of 35-40 nm, which is in consistence with transmission electron microscopy results. The average grain size as calculated from scanning electron microscopy is found to be 100 nm. DC resistivity is found to be about 10 times higher than the reported values. Specific saturation magnetization is observed to be increasing from 25.23 emu/g to 48.98 emu/g with cadmium concentration. Magnetic moment is increasing from 1.07 BM to 2.35 BM with increasing concentration of Cd 2+ ions. Variation of anisotropy constant as a function of concentration of doping is also discussed. Comparatively higher DC resistivity, refined crystallite size and improved magnetization are the main achievements of the present investigation.