期刊
ELECTROCHEMICAL AND SOLID STATE LETTERS
卷 13, 期 3, 页码 H87-H89出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.3279689
关键词
cells (electric); diffusion; dissolving; electrochemical electrodes; platinum; silver; strontium compounds; X-ray photoelectron spectra
资金
- State Key Program for Basic Research of China [2007CB935401]
- 863 Project of China [2008AA031401]
- National Key Project [2009ZX02023-5-4]
- National Natural Science Foundation of China [10804048]
- Doctoral Program of Higher Education of China [200802841003]
Reproducible and reliable bipolar resistive switching was obtained from Ag/SrTiO3 (STO)/Pt memory cells. The current-voltage characteristic of the Ag/STO/Pt cells with a positive voltage applied to the Pt electrode and the results of X-ray photoelectron spectroscopy imply that the electrochemical reaction and the diffusion of Ag+ ions play a critical role in the resistive switching effect. The temperature dependence of the on-state resistance, combined with the time dependence of the on- and off-state resistances under a constant voltage, provides further evidence that the resistive switching mechanism should be ascribed to the formation and dissolution of the metallic Ag nanofilaments.
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