Bipolar resistance switching property of Al-Ag/La0.7Ca 0.3MnO3/Pt sandwiches
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Liu, Xinjun
Li, Xiaomin
Yu, Weidong
Wang, Qun
Cao, Xun
Chen, Lidong
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Ceramic Society of Japan/Nippon Seramikkusu Kyokai
Abstract
Bipolar resistance switching was investigated on La0.7Ca 0.3MnO3 (LCMO) thin film with Al-Ag alloy top electrode (TE) including different Ag contents. The switching capability of Al-Ag/LCMO/Pt was greatly improved in Al-33%Ag TE structure compared to in Al-50% Ag TE structure. Switching times of faster than 100 ns and rewrite cycles of more than 400 were obtained while maintaining a ratio of resistance change larger than 1000%. The mechanism of resistance switching was explained by a model with interfacial nanostructured domains composed of Ag and insulator AlOx matrix, as previously proposed for Al-50%Ag/LCMO/Pt structure.
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Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
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2037-12-31
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