Room temperature Ferromagnetism in Th1-xFexO2-d x = 0.0, 0.05, 0.10, 0.15, 0.20 and 0.25 nanoparticles - Condensed Matter > Materials ScienceReportar como inadecuado




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Abstract: Nanocrystalline Th1-xFexO2-d particles with different Fe concentrations x= 0.0, 0.05, 0.10, 0.15, 0.20 and 0.25 have been prepared by a gel combustionmethod. Rietveld refinement analyses of X-ray diffraction data revealed theformation of an impurity free cubic type Th1-xFexO2-d structure up to x = 0.20.This observation is further confirmed from the detailed studies conducted on 10at. percent Fe doped ThO2 using high-resolution transmission electronmicroscopy HRTEM imaging and indexing of the selected-area electrondiffraction SAED patterns. DC Magnetization studies as a function fieldindicate that they are ferromagnetic with Curie temperature Tc well aboveroom temperature.



Autor: O. D. Jayakumar, I. K. Gopalakrishnan, A. Vinu, A. Asthana, A. K. Tyagi

Fuente: https://arxiv.org/







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