借助紧束缚模型,数值研究了环境无序效应对基于鱼骨模型的合成Fibonacci型DNA分子的电子态密度和输运系数的电子结构的影响.数据表明,随着环境无序度的增大,电子态的分布范围变广,且有向高能区移动的趋势,能带有一定程度的展宽,能带间隙变窄,体现出无序系统的特征.
参考文献
[1] | Eley D D;Spivery D I .Semiconductivity of organic substances Ⅸ.Nucleic acid in the dry state[J].Transactions of the Faraday Society,1962,58:411. |
[2] | Hwang J S;Kong J K;Ahn D et al.Electrical transport 60 bp of poly(G)-poly(C) DNA molecules[J].Applied Physics Letters,2002,81:1134. |
[3] | Cuniberti G.;Craco L.;Porath D.;Dekker C. .Backbone-induced semiconducting behavior in short DNA wires - art. no. 241314[J].Physical Review.B.Condensed Matter,2002(24):1314-0. |
[4] | A. J. Storm;J. van Noort;S. de Vries;C. Dekker .Insulating behavior for DNA molecules between nanoelectrodes at the 100 nm length scale[J].Applied physics letters,2001(23):3881-3883. |
[5] | Zhang Y.;Austin RH.;Kraeft J.;Cox EC.;Ong NP. .Insulating behavior of lambda-DNA on the micron scale - art. no. 198102[J].Physical review letters,2002(19):8102-0. |
[6] | Kasumov A Y;Kociak M;Gueron S et al.Proximityinduced superconductivity in DNA[J].Science,2001,291(5502):280. |
[7] | Armitage NP.;Briman M.;Gruner G. .Charge transfer and charge transport on the double helix[J].Physica status solidi, B. Basic research,2004(1):69-75. |
[8] | Tran P.;Gruner G.;Alavi B. .Charge transport along the lambda-DNA double helix[J].Physical review letters,2000(7):1564-1567. |
[9] | Yu ZG.;Song XY. .Variable range hopping and electrical conductivity along the DNA double helix[J].Physical review letters,2001(26):6018-6021. |
[10] | Risser S M;Beratan D N L;Meade T J .Electron transfer in DNA:Predictions of exponential growth and decay of coupling with donor-acceptor distance[J].Journal of the American Chemical Society,1993,115(06):2508. |
[11] | Klotsa D;R(o)mer R A;Turner M S .Electronic transport in DNA[J].Biophysical Journal,2005,89(04):2187. |
[12] | Dean P .The vibrational properties of disordered systems:Numerical studies[J].Reviews of Modern Physics,1972,44(02):127. |
[13] | 刘小良,徐慧,马松山,邓超生,郭爱敏.DNA分子链的电子局域性质及电导的研究[J].物理学报,2006(10):5562-5567. |
[14] | 刘小良,徐慧,李燕峰,李明君.Fibonacci链的电子结构特性[J].计算物理,2008(03):358-364. |
[15] | Kramer B;MacKinnon A .Localization:Theory and experiment[J].Reports on Progress in Physics,1993,56(12):1469. |
[16] | 刘小良,黄晓梅,徐慧,任意.Fibonacci序列的统计属性和电子输运系数[J].物理学报,2010(06):4202-4210. |
[17] | Slavin J;Ivanisevic A .Dual restriction enzyme digest of cationic-gold-coated DNA scaffolds[J].Nanotechnology,2007,2(04):821. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%