AlFeO3 nanoparticles: An efficient perovskite material for low operating bias memristive devices

We report the preparation and resistive switching properties of AlFeO₃ nanoparticles. The high purity AlFeO₃ nanoparticles were prepared by chemical route. The purity and multiferroic properties of the nanoparticles were confirmed by different physical characterizations. From the potential application point of view, the prototype device developed with these nanoparticles shows highly stable resistive switching behavior (1-bit operation) for > 102 cycles and under voltage pulse for 103 cycles at low operating bias (± 1 V). The resistive switching properties observed in the nanoparticles do not exhibit correlation with ferroelectric properties and the features were observed without poling the nanoparticles. Thus, AlFeO₃ nanoparticles exhibit ferroic and resistive switching both the properties and show promising lead free multiferroic material.