تقرير
Guidelines for the stabilization of a polar rhombohedral phase in epitaxial Hf0.5Zr0.5O2 thin films
| العنوان: | Guidelines for the stabilization of a polar rhombohedral phase in epitaxial Hf0.5Zr0.5O2 thin films |
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| المؤلفون: | Nukala, Pavan, Wei, Yingfen, de Haas, Vincent, Guo, Qikai, Antoja-Lleonart, Jordi, Noheda, Beatriz |
| المصدر: | Ferroelectrics, 569:1, 148-163 (2020) |
| سنة النشر: | 2020 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science |
| الوصف: | The unconventional Si-compatible ferroelectricity in hafnia-based systems, which becomes robust only at nanoscopic sizes, has attracted a lot of interest. While a metastable polar orthorhombic (o-) phase (Pca21) is widely regarded as the responsible phase for ferroelectricity, a higher energy polar rhombohedral (r-) phase is recently reported on epitaxial HfZrO4 (HZO) films grown on (001) SrTiO3 (R3m or R3), (0001) GaN (R3), and Si (111). Armed with results on these systems, here we report a systematic study leading towards identifying comprehensive global trends for stabilizing r-phase polymorphs in epitaxially grown HZO thin films (6 nm) on various substrates (perovskites, hexagonal and Si). Comment: Final version as it appears in the 50th Anniversary issue of Ferroelectrics |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1080/00150193.2020.1791658 |
| URL الوصول: | http://arxiv.org/abs/2005.01809 |
| رقم الأكسشن: | edsarx.2005.01809 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1080/00150193.2020.1791658 |
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