Anomalous optical properties and electron-phonon coupling enhancement in Fe₂O₃ nanoparticles coated with a layer of stearates

In this paper the anomalous optical responses and structural variations of Fe₂O₃ nanoparticles coated with a layer of stearates are correlated. These variations are originated from the quantum confined polaronic state evidenced by spectroscopic characteristics, which is the interplay of the quantum size effect, interfacial effect introduced by stearates and localized d electrons in the Fe₂O₃ nanoparticles.