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 |
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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 |
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