dc.contributor.author |
Naik, P.P. |
|
dc.contributor.author |
Tangsali, R.B. |
|
dc.date.accessioned |
2017-07-11T07:48:24Z |
|
dc.date.available |
2017-07-11T07:48:24Z |
|
dc.date.issued |
2017 |
|
dc.identifier.citation |
Journal of Alloys and Compounds. 723(); 2017; 266-275. |
en_US |
dc.identifier.uri |
https://doi.org/10.1016/j.jallcom.2017.06.207 |
|
dc.identifier.uri |
http://irgu.unigoa.ac.in/drs/handle/unigoa/4819 |
|
dc.description.abstract |
Rare earth (Nd sup(3+)) doped Manganese-Zinc Ferrite nanoparticles with composition Mn sub(0.65)Zn sub(0.35)Fe sub(2-x)Nd sub(x)O sub(4) (x = 0.04, 0.05 and 0.06) were prepared using combustion method of materials preparation. Formation of pure spinel phase was confirmed using X-ray diffraction (XRD) and Fourier transforms infra red spectroscopy (FTIR). The samples were exposed to various doses of gamma-radiation (500Gy, 750Gy and 1000Gy) after recording the data on structural and electrical transport properties of as prepared samples, in order to study the effect of gamma-radiation on these properties of the nanoparticles. Lattice constant 'a' that showed a moderate increment with Nd sup(3+) doping was found to show a further increase after gamma-radiation exposure with nearly a 30 to 40 percent reduction in crystallite size. Transmission electron micrographs showed a decreasing trend of particle size that was nearly proportional to increasing dose of gamma-radiation. The samples which showed enhancement in resistivity profile with increasing Nd sup(3+) concentration showed a reverse trend of decrease in the resistivity values with increasing gamma radiation dose thus contributing to the conduction process. The dielectric constant of Nd sup(3+) doped samples showed a multifold increase in the dielectric constant with a further increase in its values for radiated samples, when referred to the values reported for undoped Mn-Zn nanoparticle ferrite materials. |
en_US |
dc.publisher |
Elsevier |
en_US |
dc.subject |
Physics |
en_US |
dc.title |
Enduring effect of rare earth (Nd sup(3+)) doping and gamma-radiation on electrical properties of nanoparticle manganese zinc ferrite |
en_US |
dc.type |
Journal article |
en_US |
dc.identifier.impf |
y |
|