Influence of carrier injection on resistive switching of TiO2 thin films with Pt electrodes

被引:63
|
作者
Kim, Kyung Min [1 ]
Choi, Byung Joon
Jeong, Doo Seok
Hwang, Cheol Seong
Han, Seungwu
机构
[1] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151744, South Korea
[2] Seoul Natl Univ, Interuniv Semicond Res Ctr, Seoul 151744, South Korea
[3] Ewha Womans Univ, Dept Phys, Seoul 120750, South Korea
[4] Ewha Womans Univ, Div Nano Sci, Seoul 120750, South Korea
关键词
D O I
10.1063/1.2361268
中图分类号
O59 [应用物理学];
学科分类号
摘要
The influence of electron injection on the electric-pulse-induced resistive switching of Pt/TiO2 thin film/Pt structure was studied by current-voltage (I-V) measurements. The electron injection was increased by annealing the sample in a N-2 atmosphere or measuring the I-V characteristics at high temperatures (> 100 degrees C). The switching from the high-resistance state (HRS) to the low-resistance state by a filamentary mechanism was suppressed when the carrier injection by Schottky emission or space-charge-limited conduction (SCLC) was excessive. Interfacial potential barrier played a crucial role in determining the carrier injection. Switching was observed (not observed) when the HRS resistance was low (high) although SCLC was observed.
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页数:3
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