Resistive switching effect and magnetic properties of iron oxide nanoparticles embedded-polyvinyl alcohol film.

ABSTRACT: In this study, the memory device of iron oxide (IO) nanoparticles (NPs) embedded in polyvinyl alcohol (PVA) demonstrates the bipolar resistive switching characteristics under an external electric field. The phase and magnetic properties of iron oxide nanoparticles change corresponding to its resistive states. At the high resistance state (HRS) of device, iron oxide nanoparticles are primarily in Fe₂O₃ phase and the ferromagnetism behavior is observed. In contrast, the iron oxide nanoparticles clustered by the bridging oxygen vacancies lead to mainly Fe₃O₄ phase and no hysteresis magnetic curve is observed at the low resistance state (LRS) of device. The results reveal that oxygen vacancies/ions in nanoparticles notably influence the resistance an

SUBMITTER: Nguyen HH 

PROVIDER: S-EPMC9051151 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature