Dielectric polarization and charge transport in Gd-doped Fe ₃ O ₄ nanocrystals for energy storage and electronic devices

Gd-doped magnetite (Gd _x Fe _{3− x} O ₄ ) nanocrystals were synthesized via the co-precipitation method with an aim to study the effect of rare-earth substitution on their structure, shape, and dielectric and magnetic properties.