تقرير
Screening of a hypercritical charge in graphene
| العنوان: | Screening of a hypercritical charge in graphene |
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| المؤلفون: | Fogler, M. M., Novikov, D. S., Shklovskii, B. I. |
| المصدر: | Phys. Rev. B 76, 233402 (2007) |
| سنة النشر: | 2007 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science |
| الوصف: | Screening of a large external charge in graphene is studied. The charge is assumed to be displaced away or smeared over a finite region of the graphene plane. The initial decay of the screened potential with distance is shown to follow the 3/2 power. It gradually changes to the Coulomb law outside of a hypercritical core whose radius is proportional to the external charge. Comment: (v1) 4 pages, 1 figure (v2) Much improved introduction; extended range of numerics |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.76.233402 |
| URL الوصول: | http://arxiv.org/abs/0707.1023 |
| رقم الأكسشن: | edsarx.0707.1023 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.76.233402 |
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