| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Real Time Imaging
|
| Presentation Title |
In Situ Investigation of the Effect of Ion Irradiation and Carbon Addition in GST on Crystallization and Amorphization Thresholds |
| Author(s) |
Trevor Clark, David P. Adams, Khalid Hattar |
| On-Site Speaker (Planned) |
Trevor Clark |
| Abstract Scope |
The rapid phase change in germanium antimony tellurium (GST) make it widespread in memory applications. Typical transitions between crystalline and amorphous phases occurs at temperatures in the range of 100-150 °C. The reliability of memory devices in extreme environments is critical for applications such as in satellites and extra-terrestrial exploration where radiation damage can cause phase change. In situ transmission electron microscopy (TEM) is utilized to observe the real time crystallization due to applied heating for a variety of C doped GST compositions. In this work, thin films were prepared for TEM via DC magnetron sputter deposition and irradiated with 2.8 MeV Au ions ex situ to a range of damage levels. Increasing levels of C increase the crystallization temperature. In situ ion irradiation TEM experiments investigated the amorphization thresholds of crystallized films. SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Electronic Materials, Phase Transformations |