کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1809165 1525189 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The longitudinal optical conductivity in bilayer graphene and other two-dimensional systems
ترجمه فارسی عنوان
هدایت نوری طولی در گرافن دو لایه و دیگر سیستم های دو بعدی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
چکیده انگلیسی

The longitudinal optical conductivity in bilayer graphene is calculated using the dielectric function by defining the density operator theoretically, while the effect of the broadening width determined by the scattering sources on the optical conductivity is also investigated. Some features, such as chirality, energy dispersion and density of state (DOS) in bilayer graphene, are similar to those in monolayer graphene and a traditional two-dimensional electron gas (2DEG). Therefore, in this paper, the bilayer graphene optical conductivity is compared with the results in these two systems. The analytical and numerical results show that the optical conductivity per graphene layer is almost a constant and close to e2/(4ℏ)e2/(4ℏ), which agrees with the experimental results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 457, 15 January 2015, Pages 92–95
نویسندگان
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