تقرير
Strain release at the graphene-Ni(100) interface investigated by in-situ and operando scanning tunnelling microscopy
| العنوان: | Strain release at the graphene-Ni(100) interface investigated by in-situ and operando scanning tunnelling microscopy |
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| المؤلفون: | Zou, Zhiyu, Patera, Laerte L., Comelli, Giovanni, Africh, Cristina |
| المصدر: | Carbon, Vol. 172 (2021), pp. 296-301 |
| سنة النشر: | 2020 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Condensed Matter - Materials Science, Physics - Chemical Physics |
| الوصف: | Interface strain can significantly influence the mechanical, electronic and magnetic properties of low-dimensional materials. Here we investigated by scanning tunneling microscopy how the stress introduced by a mismatched interface affects the structure of a growing graphene (Gr) layer on a Ni(100) surface in real time during the process. Strain release appears to be the main factor governing morphology, with the interplay of two simultaneous driving forces: on the one side the need to obtain two-dimensional best registry with the substrate, via formation of moir\'e patterns, on the other side the requirement of optimal one-dimensional in-plane matching with the transforming nickel carbide layer, achieved by local rotation of the growing Gr flake. Our work suggests the possibility of tuning the local properties of two-dimensional films at the nanoscale through exploitation of strain at a one-dimensional interface. Comment: 17 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.carbon.2020.10.019 |
| URL الوصول: | http://arxiv.org/abs/2010.04117 |
| رقم الأكسشن: | edsarx.2010.04117 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.carbon.2020.10.019 |
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