Room temperature ferromagnetism in Ce(1-x)Fe(x)O(2-delta) (x = 0.0, 0.05, 0.10, 0.15 and 0.20) nanoparticles synthesised by combustion method.
Nanocrystalline Ce(1-x)Fe(x)O(2-delta) particles with different Fe concentrations (x = 0.0, 0.05, 0.10, 0.15, and 0.20) have been prepared by a gel-combustion method. X-ray diffraction data revealed the formation of an impurity free Ce(1-x)Fe(x)O(2-delta) products up to x = 0.15. This observation is further confirmed from the detailed studies conducted on 10 at.% Fe doped CeO2 using High-Resolution Transmission Electron Microscopy (HRTEM) imaging, Selected-Area Electron Diffraction (SAED) and Raman spectroscopy. DC magnetization studies as a function of field and temperature indicate that they are ferromagnetic with Curie temperature (Tc) well above room temperature.
Jayakumar
Onattu Damodharan
OD
Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
Vinu
Ajayan
A
Guduru
K Veerendra
KV
Sakuntala
Tyagaraja
T
Tyagi
Avesh Kumar
AK