铁电性
材料科学
极化(电化学)
非易失性存储器
磁性
光电子学
隧道枢纽
计算机数据存储
信息存储
铁电电容器
纳米技术
计算机科学
计算机硬件
凝聚态物理
物理
电介质
化学
量子隧道
物理化学
数据库
作者
Vincent Garcia,M. Bibes
摘要
Computer memory based on ferroelectric polarization is a promising alternative to technologies based, for example, on magnetism. Here, Garcia and Bibes review how ferroelectric tunnel junctions, where ferroelectric polarization controls electrical resistance, could improve the performance of these devices. Computer memory that is non-volatile and therefore able to retain its information even when switched off enables computers that do not need to be booted up. One of the technologies for such applications is ferroelectric random access memories, where information is stored as ferroelectric polarization. To miniaturize such devices to the size of a few nanometres, ferroelectric tunnel junctions have seen considerable interest. There, the electric polarization determines the electrical resistance of these thin films, switching the current on and off. With control over other parameters such as magnetism also being possible, ferroelectric tunnel junctions represent a promising and flexible device design.
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