Investigation of Structural, Magneto-transport, and Electronic properties of Pr0.7Sr0.3MnO3 nanoparticle
Journal Title: JOURNAL OF ADVANCES IN PHYSICS - Year 0, Vol 7, Issue 3
Abstract
In this report Micro-structural, magnetic, electronic, and magneto-transport properties of perovskite Pr0.7Sr0.3MnO3 manganite nanoparticles have been thoroughly investigated. A series of samples with different particle size (Φ) is synthesized by chemical pyrophoric reaction process. Rietveld refinement of X-Ray diffraction pattern of the sample showed single phase orthorhombic structure with Pbnm space group. Metal- insulator transition () has been observed in the temperature range of 180-200 K in zero field resistivity data (2300 K) and it differs from ferromagnetic to paramagnetic transition temperature () due to enhanced surface disorder effect. The lowest nanomentric sample exhibit maximum 85 % magneto-resistances under 8 T magnetic field at 4 K. Magneto-impedance measurement of the Pr0.7Sr0.3MnO3 nano particles have been obtained at 0.8 T in the temperature range 80-300 K. The magneto transport properties has been explored with spin polarized tunneling and spin dependent scattering of single ferromagnetic domain with nanometric grain size modulation. We have analyzed temperature dependent resistivity data using small polaron hopping and variable range hopping models. Below < 40 K a resistivity upturn behavior exhibiting a distinct resistivity minimum has been observed for each sample, which is best explained by electron-electron interaction and weak localization mechanism.
Authors and Affiliations
PROLOY TARAN DAS, Tapan Kumar Nath
Keywords
Related Articles
- EP ID EP653779
- DOI 10.24297/jap.v7i3.1598
- Views 92
- Downloads 0
Study Of Some Mechanical Properties For Epoxy/ SiO2 Nano Particles Reinforced With 6 Layers Of CM E-Glass Fibers Composites
In this study, the neat epoxy and nanocomposites with volume fraction (1, 3, 5, 7 and10%) of nano SiO2 particles reinforced with six layers of chopped mat E-glass fibers (CM) specimens were prepared by molding method. Th...
Atomic disruption beam theory
In this paper, I discuss the theory behind the use of a dense, concentrated neutron particle-based beam. I look at the particle based physics behind such a beam, when it is focused against solid material matter. Although...
Fifth Geometric-Arithmetic Index of Polyhex Zigzag TUZC6[m,n] Nanotube and Nanotori
Among topological descriptors, connectivity indices are very important and they have a prominent role in chemistry. The geometric-arithmetic index (GA) index is a topological index was defined as GA (G) in which degree o...
Physical Mathematics and The Fine-Structure Constant
Research into ancient physical structures, some having been known as the seven wonders of the ancient world, inspired new developments in the early history of mathematics. At the other end of this spectrum of inquiry the...
A STUDY OF COMPOUND PARTICLES IN EMULSION
An attempt is made to study the compound particles by taking black and shower particles together. Average compound particle multiplicity is found to vary linearly with heavily ionizing particle multiplicity but with blac...