- PII
- S30345510S0023476125050113-1
- DOI
- 10.7868/S3034551025050113
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 70 / Issue number 5
- Pages
- 810-816
- Abstract
- Using a pulsed electron diffraction instrument, a phase transition in a ~10 nm GeSbTe (GST) film was studied upon heating it from room temperature to ~400°C. During crystallization of a free-standing amorphous sample, the formation of a hexagonal GST phase was detected, for which mixing Sb and Ge leads to a formal violation of translational symmetry and unit cell symmetry. However, upon heating an identical amorphous GST film on a carbon membrane, the crystalline state turned out to be represented only by a cubic phase. Within the framework of the Phillips theory, a qualitative explanation is proposed for such a nanoscale effect in GST, which opens up new possibilities for controlling structural ordering in phase-change memory materials (PCMM).
- Keywords
- Date of publication
- 20.01.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 30
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