کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1547568 | 1512909 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
1/f noise in a dilute GaAs two-dimensional hole system in the insulating phase
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We have measured the resistance and the 1/f resistance noise of a two-dimensional low-density hole system in a high mobility GaAs quantum well at low temperature. At densities lower than the metal-insulator transition one, the temperature dependence of the resistance is either power-like or simply activated. The noise decreases when the temperature or the density increase. These results contradict the standard description of independent particles in the strong localization regime. On the contrary, they agree with the percolation picture suggested by higher density results. The physical nature of the system could be a mixture of a conducting and an insulating phase. We compare our results with those of composite thin films.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 34, Issues 1â2, August 2006, Pages 252-255
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 34, Issues 1â2, August 2006, Pages 252-255
نویسندگان
G. Deville, R. Leturcq, D. L'Hôte, R. Tourbot, C.J. Mellor, M. Henini,