Fig. 4From: Post-treatment Method for the Synthesis of Monodisperse Binary FePt-Fe3O4 NanoparticlesX-ray photoelectron spectra from as-synthesized nanoparticles ((a1): Fe 2p, (a2): O 1s, (a3): Pt 4f) and nanoparticles post-treated at 200 °C ((b1): Fe 2p, (b2): O 1s, (b3): Pt 4f)Back to article page