تقرير
Structure of amorphous Cu$_2$GeTe$_3$ and a model for its fast phase-change mechanism
| العنوان: | Structure of amorphous Cu$_2$GeTe$_3$ and a model for its fast phase-change mechanism |
|---|---|
| المؤلفون: | Stellhorn, Jens R., Paulus, Benedict, Hosokawa, Shinya, Pilgrim, Wolf-Christian, Boudet, Nathalie, Blanc, Nils, Sutou, Yuji |
| سنة النشر: | 2019 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science |
| الوصف: | The structure of amorphous Cu$_2$GeTe$_3$ is investigated by a combination of anomalous x-ray scattering and extended x-ray absorption fine structure experiments. The experimental data are analyzed with a reverse Monte Carlo modeling procedure, and interpreted in terms of the short- and intermediate-range order. Based on this information, a model for the phase transition in Cu$_2$GeTe$_3$ is proposed, in which atoms move toward the center of the 6-fold rings of the crystal structure, leading to the formation of wrong bonds and a broader distribution of ring structures, but also preserving some structural motifs of the crystal. Comment: 8 pages, 6 figures, 4 tables |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1908.07297 |
| رقم الأكسشن: | edsarx.1908.07297 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |