Electric field-dependent charge transport in a poly (dA)-(dT) DNA molecule: localization length study

2nd International Conference on Current Progress in Functional Materials 2017

Rahmani, F.^1 ; Yudiarsah, E.^1

Department of Physics, Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Indonesia, Depok

16424, Indonesia^1

关键词: Electric field and temperatures;    Electric field change;    Electronic transport;    Electronic transport properties;    External electric field;    Localization length;    Orthonormalization;    Tight-binding Hamiltonians;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/496/1/012061/pdf
DOI  :  10.1088/1757-899X/496/1/012061

来源: IOP

【 摘 要 】

Electronic transport in DNA molecules could depend on many factors, one of them is external electric field influence. In this research we analyse localization length of poly (dA)-(dT) DNA molecule to study its electronic transport properties. Tight binding Hamiltonian model is used along with electric field and temperature influence. Electric field is set to be parallel to the helix axis of DNA. Transfer-matrix method is required to calculate localization length, while gram-schmidt orthonormalization method is used to reduce errors. The results show that electric field changes localization length in all energy considered in calculation.