Structural and magnetic properties of Fe2−xCoSmxO4-nanoparticles and Fe2−xCoSmxO4-PDMS magnetoelastomers as a function of Sm content

► We study magnetic and physical properties of Sm-substituted Fe2CoO4 nanoparticles. ► Magnetic nanoparticles were synthesized by the coprecipitation method. ► Particle size, Sm content and perovskite phase are found to affects magnetic properties. ► Heat treatment is found to be useful to enhance magnetic properties. ► PDMS-NPs magnetoelastomers were studied and found magnetic and elastically anisotropic.