Effect of the Electroformation Conditions on the Switching Stability of Memristors Based on Open 'Sandwich' Structures in an Oxygen Medium
| Autor: | V. M. Mordvintsev, S. E. Kudryavtsev, E. S. Gorlachev |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Nanostructure
Materials science chemistry.chemical_element 02 engineering and technology Memristor 01 natural sciences Oxygen Stability (probability) law.invention law 0103 physical sciences Materials Chemistry Electrical and Electronic Engineering Electrical conductor Sheet resistance 010302 applied physics business.industry Limiting current 021001 nanoscience & nanotechnology Condensed Matter Physics Electronic Optical and Magnetic Materials chemistry Optoelectronics Current (fluid) 0210 nano-technology business |
| Zdroj: | Russian Microelectronics. 50:146-154 |
| ISSN: | 1608-3415 1063-7397 |
| DOI: | 10.1134/s1063739721020062 |
| Popis: | The object of research are samples of nonvolatile electrically alterable memory elements (memristors) based on TiN–TiO2–SiO2–W open “sandwich” structures, in which conductive nanostructures with electrically alterable characteristics are formed by the electroformation. The effect of the oxygen pressure and the electroformation conditions on the switching of the memory element is investigated. With the new experimental material, the earlier established character of the dependence of the oxygen threshold pressure (Pth) on the limiting current of switching (Ilim) for the pulse switching on of a memory element is confirmed. A shift in the Pth(Ilim) curve for different electroformation conditions, which can be explained by the corresponding change in the size of the conductive nanostructure, is demonstrated. Based on the obtained experimental data, changes in the size and specific surface resistance of the material of the conductive medium with varying limiting current of the electroformation Ilimf are estimated, which reveals an increase in the compactness of the nanostructure with a decreasing current. The earlier proposed mechanisms of the processes are clarified. A well-grounded method of the choice of the conditions of the electroformation for open sandwich structures is devised. |
| Databáze: | OpenAIRE |
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