4 papers
Structural phase stability and Magnetism in Co2FeO4 spinel oxide
I. Panneer Muthuselvam, R. N. Bhowmik
We report a correlation between structural phase stability and magnetic properties of Co2FeO4 spinel oxide. We employed mechanical alloying and subsequent annealing to obtain the d…
Lattice disorder and Ferromagnetism in La0.67Ca0.33MnO3 nanoparticle
R. N. Bhowmik, Asok Poddar, R. Ranganathan +1
We study the ferromagnetism of La0.67Ca0.33MnO3 in bulk polycrystalline, nanocrystalline and amorphous phase. The structural change from crystalline phase to amorphous phase exhibi…
Static magnetic response of clusters in Co_{0.2}Zn_{0.8}Fe_{1.95}Ho_{0.05}O_{4} spinel oxide
R. N. Bhowmik, R. Ranganathan, R. Nagarajan
Earlier investigation of Co_{0.2}Zn_{0.8}Fe_{1.95}Ho_{0.05}O_{4} spinel has shown the existence of "super-ferromagnetic " clusters containing Fe^{3+} and Ho^{3+} ions along with sm…
Particle size effects in the antiferromagnetic spinel CoRhO
R. N. Bhowmik, R. Nagarajan, R. Ranganathan
We report the particle size dependent magnetic behaviour in the antiferromagnetic spinel CoRh2O4. The nanoparticles were obtained by mechanical milling of bulk material, prepared u…