Bipolar Resistive Switching Characteristic of Epitaxial NiO Thin Film on Nb-Doped SrTiO3 Substrate
Epitaxial NiO film was grown on 0.7% Nb-doped SrTiO3 substrates by pulsed laser deposition. The I-V characteristics of Ag/NiO/Nb-SrTiO3/In device show reproducible and pronounced bipolar resistive switching without forming process which was induced by the NiO/Nb-SrTiO3 junctions, and the resistive s...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2012/364376 |
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| Summary: | Epitaxial NiO film was grown on 0.7% Nb-doped SrTiO3 substrates by pulsed laser deposition. The I-V characteristics of Ag/NiO/Nb-SrTiO3/In device show reproducible and pronounced bipolar resistive switching without forming process which was induced by the NiO/Nb-SrTiO3 junctions, and the resistive switching ratio 𝑅HRS/𝑅LRS can reach 103 at the read voltage of −0.5 V. Furthermore, the resistance states can be controlled by changing the max forward voltage, reverse voltage, or compliance current, indicating multilevel memories. These results were discussed by considering the role of carrier injection trapped/detrapped at the interfacial depletion region of the heterojunction. |
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| ISSN: | 1687-8108 1687-8124 |