Production of cobalt nanopowders by electron-beam technology and their NMR and magnetometry study

•Nanostructured cobalt powders were synthesized using electron-beam technology.•Complex structure, magnetometry and NMR investigation was carried out.•Fabricated roentgen-amorphous nanopowders do not require additional passivation.

Complex structure, magnetometry and NMR investigation of nanostructural cobalt powders synthesized using electron-beam technology was carried out. The developed technology makes it possible to fabricate roentgen-amorphous nanosized cobalt powders containing highly anisotropic HCP phase which does not require additional passivation measures. Magnetometry and NMR data are in correspondence with the results of structure measurements.