Density Functional Theory Insights into Conduction Mechanisms in Perovskite-Type RCoO<sub>3</sub> Nanofibers for Future Resistive Random-Access Memory Applications
In the era of artificial intelligence and Internet of Things, data storage has an important impact on the future development direction of data analysis. Resistive random-access memory (RRAM) devices are the research hotspot in the era of artificial intelligence and Internet of Things. Perovskite-typ...
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2024-12-01
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| author | Quanli Hu Hanqiong Luo Chao Song Yin Wang Bin Yue Jinghai Liu |
| author_facet | Quanli Hu Hanqiong Luo Chao Song Yin Wang Bin Yue Jinghai Liu |
| author_sort | Quanli Hu |
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| description | In the era of artificial intelligence and Internet of Things, data storage has an important impact on the future development direction of data analysis. Resistive random-access memory (RRAM) devices are the research hotspot in the era of artificial intelligence and Internet of Things. Perovskite-type rare-earth metal oxides are common functional materials and considered promising candidates for RRAM devices because their interesting electronic properties depend on the interaction between oxygen ions, transition metals, and rare-earth metals. LaCoO<sub>3</sub>, NdCoO<sub>3</sub>, and SmCoO<sub>3</sub> are typical rare-earth cobaltates (RCoO<sub>3</sub>). These perovskite materials were fabricated by electrospinning and the calcination method. The aim of this study was to investigate the resistive switching effect in the RCoO<sub>3</sub> structure. The oxygen vacancies in RCoO<sub>3</sub> are helpful to form conductive filaments, which dominates the resistance transition mechanism of Pt/RCoO<sub>3</sub>/Pt. The electronic properties of RCoO<sub>3</sub> were investigated, including the barrier height and the shape of the conductive filaments. This study confirmed the potential application of LaCoO<sub>3</sub>, NdCoO<sub>3</sub>, and SmCoO<sub>3</sub> in memory storage devices. |
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| publishDate | 2024-12-01 |
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| spelling | doaj-art-1e8a41301c01471bb64e6183a28b480d2024-12-27T14:43:04ZengMDPI AGMolecules1420-30492024-12-012924605610.3390/molecules29246056Density Functional Theory Insights into Conduction Mechanisms in Perovskite-Type RCoO<sub>3</sub> Nanofibers for Future Resistive Random-Access Memory ApplicationsQuanli Hu0Hanqiong Luo1Chao Song2Yin Wang3Bin Yue4Jinghai Liu5Inner Mongolia Key Lab of Solid State Chemistry for Battery, Inner Mongolia Engineering Research Center of Lithium-Sulfur Battery Energy Storage, College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, ChinaInner Mongolia Key Lab of Solid State Chemistry for Battery, Inner Mongolia Engineering Research Center of Lithium-Sulfur Battery Energy Storage, College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, ChinaInner Mongolia Key Lab of Solid State Chemistry for Battery, Inner Mongolia Engineering Research Center of Lithium-Sulfur Battery Energy Storage, College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, ChinaInner Mongolia Key Lab of Solid State Chemistry for Battery, Inner Mongolia Engineering Research Center of Lithium-Sulfur Battery Energy Storage, College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, ChinaDepartment of Chemistry, Tonghua Normal University, Tonghua 134002, ChinaInner Mongolia Key Lab of Solid State Chemistry for Battery, Inner Mongolia Engineering Research Center of Lithium-Sulfur Battery Energy Storage, College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, ChinaIn the era of artificial intelligence and Internet of Things, data storage has an important impact on the future development direction of data analysis. Resistive random-access memory (RRAM) devices are the research hotspot in the era of artificial intelligence and Internet of Things. Perovskite-type rare-earth metal oxides are common functional materials and considered promising candidates for RRAM devices because their interesting electronic properties depend on the interaction between oxygen ions, transition metals, and rare-earth metals. LaCoO<sub>3</sub>, NdCoO<sub>3</sub>, and SmCoO<sub>3</sub> are typical rare-earth cobaltates (RCoO<sub>3</sub>). These perovskite materials were fabricated by electrospinning and the calcination method. The aim of this study was to investigate the resistive switching effect in the RCoO<sub>3</sub> structure. The oxygen vacancies in RCoO<sub>3</sub> are helpful to form conductive filaments, which dominates the resistance transition mechanism of Pt/RCoO<sub>3</sub>/Pt. The electronic properties of RCoO<sub>3</sub> were investigated, including the barrier height and the shape of the conductive filaments. This study confirmed the potential application of LaCoO<sub>3</sub>, NdCoO<sub>3</sub>, and SmCoO<sub>3</sub> in memory storage devices.https://www.mdpi.com/1420-3049/29/24/6056cobaltatesdensity functional theoryperovskiteresistive random-access memory |
| spellingShingle | Quanli Hu Hanqiong Luo Chao Song Yin Wang Bin Yue Jinghai Liu Density Functional Theory Insights into Conduction Mechanisms in Perovskite-Type RCoO<sub>3</sub> Nanofibers for Future Resistive Random-Access Memory Applications Molecules cobaltates density functional theory perovskite resistive random-access memory |
| title | Density Functional Theory Insights into Conduction Mechanisms in Perovskite-Type RCoO<sub>3</sub> Nanofibers for Future Resistive Random-Access Memory Applications |
| title_full | Density Functional Theory Insights into Conduction Mechanisms in Perovskite-Type RCoO<sub>3</sub> Nanofibers for Future Resistive Random-Access Memory Applications |
| title_fullStr | Density Functional Theory Insights into Conduction Mechanisms in Perovskite-Type RCoO<sub>3</sub> Nanofibers for Future Resistive Random-Access Memory Applications |
| title_full_unstemmed | Density Functional Theory Insights into Conduction Mechanisms in Perovskite-Type RCoO<sub>3</sub> Nanofibers for Future Resistive Random-Access Memory Applications |
| title_short | Density Functional Theory Insights into Conduction Mechanisms in Perovskite-Type RCoO<sub>3</sub> Nanofibers for Future Resistive Random-Access Memory Applications |
| title_sort | density functional theory insights into conduction mechanisms in perovskite type rcoo sub 3 sub nanofibers for future resistive random access memory applications |
| topic | cobaltates density functional theory perovskite resistive random-access memory |
| url | https://www.mdpi.com/1420-3049/29/24/6056 |
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