Crystalline and magnetic properties of CoO nanoparticles locally investigated by using radioactive indium tracer.

ABSTRACT: We herein report a comprehensive investigation on the magnetic, structural, and electric properties of CoO nanoparticles with different sizes by local inspection through hyperfine interactions measured in a wide range of temperatures (10-670 K) by using radioactive [Formula: see text]In([Formula: see text]Cd) tracers with the perturbed angular correlations technique. Small cobalt oxide nanoparticles with the characteristic size of 6.5 nm have been prepared by the wet chemical route that turned out to be essential to incorporate radioactivity tracers during nucleation and growth of the particles. Nanocrystalline samples with 22.1 nm size were obtained by thermal treatments under low pressure of helium at 670 K. The hyperfine data were correlated with X-ray diffraction, ZFC-FC magnetic measu

SUBMITTER: Santos RV 

PROVIDER: S-EPMC8546082 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature