| Autor: |
Krbal, M., Kolobov, A. V., Haines, J., Pradel, A., Ribes, M., Fons, P., Tominaga, J., Levelut, C., Le Parc, R., Hanfland, M. |
| Předmět: |
|
| Zdroj: |
Applied Physics Letters; 7/21/2008, Vol. 93 Issue 3, p031918, 3p, 3 Graphs |
| Abstrakt: |
In the temperature range from room temperature to about 150 °C, the prototypic phase-change material Ge2Sb2Te5 becomes amorphous upon hydrostatic compression. In the studied temperature range, the onset of amorphization is at about 15 GPa and the material completely amorphizes at 25 GPa; these values do not depend on temperature. Upon decompression, the amorphous phase is stable at lower temperatures, yet at higher temperatures (145 °C), the initial fcc phase is recovered upon decompression. A possible mechanism of pressure-induced amorphization and its implications for phase-change memories are discussed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
