随着器件特征尺寸不断缩小,集成度不断提高,传统的基于电荷存储的非易失性FLASH存储器将面临物理与技术的极限.新型的阻变存储器具有高速读写、存储密度高、能耗低等优点引起了微电子产业界广泛关注.介绍了阻变存储器的阻变行为,综述了目前研究的存储机制、性能及其改善方法、材料体系、器件结构,并展望了阻变存储器的应用前景.
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