Journal
RSC ADVANCES
Volume 10, Issue 22, Pages 12900-12907Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ra10101b
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Funding
- Center for Innovative Materials and Architectures (INOMAR) Vietnam National University, Ho Chi Minh City, Vietnam [INOMAR-CS2018-01]
- National Research Foundation of Korea [21A20151213022] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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 and magnetic behavior of nanocomposite thin films. Our study indicated that the magnetic NPs is high potential of multi-dimensional storage fields.
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