کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1547888 997648 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thickness effects on the Coulomb drag rate in double quantum layer systems
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Thickness effects on the Coulomb drag rate in double quantum layer systems
چکیده انگلیسی
In this paper, we have investigated the effect of quantum layer thickness on Coulomb drag phenomenon in a double quantum well (DQW) system, in which the electrons momentum can transfer from one layer to another. We have applied the full random phase approximation (RPA) in dynamical dielectric matrix of this coupled two-dimensional electron gas (2DEG) system in order to obtain an improved result for temperature-dependent rate of momentum transfer. We have calculated the drag rate transresistivity for various well thicknesses at low and intermediate temperatures in Fermi-scale and for different electron gas densities. It has been obtained that the Coulomb drag rate increases with increasing the well width when the separation between the wells remains unchanged.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 36, Issue 2, February 2007, Pages 147-152
نویسندگان
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