Enhanced reflection loss and permittivity of self assembled Mg-Co-Zr substituted barium ferrite dot array on carbon nanotube

► Ferrite dot array was formed on carbon nanotube by sol-gel method. ► It was found that the volume percentage of carbon nanotube has remarkable influence on reflection loss characteristics. ► Microwave measurements indicate that the synthesized nanocomposites could be employed as wide-band electromagnetic wave absorbers.