کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1808556 1525167 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Isolate extended state in the DNA molecular transistor with surface interaction
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Isolate extended state in the DNA molecular transistor with surface interaction
چکیده انگلیسی

The field effect characteristic of a DNA molecular device is investigated in a tight binding model with binary disorder and side site correlation. Using the transfer-matrix method and Landauer–Büttiker theory, we find that the system has isolated extended state that is irrespective of the DNA sequence and can be modulated by the gate voltage. When the gate voltage reaches some proper value, the isolated extended state appears at the Fermi level of the system and the long range charge transport is greatly enhanced. We attribute this phenomenon to the combination of the external field, the surface interaction, and the intrinsic disorder of DNA. The result is a generic feature of the nanowire with binary disorder and surface interaction.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 482, 1 February 2016, Pages 1–7
نویسندگان
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