التفاصيل البيبلوغرافية
| العنوان: |
Study and characterization of the irreversible transformation of electrically stressed planar Ti/TiOx/Ti junctions. |
| المؤلفون: |
Guillaume, N., Puyoo, E., Le Berre, M., Albertini, D., Baboux, N., Chevalier, C., Ayadi, K., Grégoire, J., Gautier, B., Calmon, F. |
| المصدر: |
Journal of Applied Physics; 2015, Vol. 118 Issue 14, p144502-1-144502-6, 6p, 2 Diagrams, 6 Graphs |
| مصطلحات موضوعية: |
TUNNEL junctions (Materials science), ELECTROLYTIC oxidation, PLANAR antennas, RUTILE, PLANAR chirality, ATOMIC force microscopy |
| مستخلص: |
We investigate the properties and characteristics of planar Ti/TiOx/Ti junctions, which consist of transverse TiOx lines drawn on Ti test patterns. Junctions are elaborated by means of local anodic oxidation using atomic force microscopy. An irreversible morphological transformation occurring in a reproducible manner is observed when these planar junctions are electrically stressed under ambient atmosphere. Structural and chemical analyses based on transmission electron microscopy techniques reveal the extension of the initial amorphous TiOx into a crystalline rutile phase. This irreversible transformation is proven to vanish completely if the electrical stress occurs under vacuum atmosphere. Finally, we carry out temperature dependent electrical measurements in order to elucidate their conduction mechanism: Schottky emission above an ultra-low potential barrier is assumed to dominate under vacuum atmosphere whereas ionic conduction seems to prevail in air. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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