Bipolar switching behavior in TiN/ZnO/Pt resistive nonvolatile memory with fast switching and long retention

被引:139
作者
Xu, N. [1 ]
Liu, L. F. [1 ]
Sun, X. [1 ]
Chen, C. [1 ]
Wang, Y. [1 ]
Han, D. D. [1 ]
Liu, X. Y. [1 ]
Han, R. Q. [1 ]
Kang, J. F. [1 ]
Yu, B. [2 ]
机构
[1] Peking Univ, Inst Microelect, Beijing 100871, Peoples R China
[2] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA
关键词
D O I
10.1088/0268-1242/23/7/075019
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Highly stable bipolar resistive switching behaviors of TiN/ZnO/Pt devices were demonstrated for the first time. The excellent memory characteristics including fast switching speed (< 20 ns for set and < 60 ns for reset), long retention (in the order of 10(5) s) and non-electroforming process were demonstrated. The bipolar switching behaviors can be explained by formation and rupture of the filamentary conductive path consisting of oxygen vacancies. The excellent bipolar switching behavior can be attributed to the significant amount of oxygen vacancies in ZnO film and the effect of TiN layer serving as an oxygen reservoir.
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页数:4
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