Effect of temperature on polaron dynamics in poly-DNA

Zhen Qu; Yuan Li; Wen Liu; Da wei Kang; Shi jie Xie

doi:10.1016/j.physleta.2009.04.048

Effect of temperature on polaron dynamics in poly-DNA

Zhen Qu, Yuan Li, Wen Liu, Da wei Kang, Shi jie Xie^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

We investigate the effect of temperature on polaron dynamics in the framework of a tight-binding model. The dissociation of a polaron will become fast with the increase of temperature. There exists a crossover of the charge localization time from strong to weak temperature-dependence. Instead of the uniform motion at zero temperature, a polaron moves un-uniformly under a driven field at a finite temperature, which indicates a discrete hopping between base pairs. It is also found that the polaron motion is thermally activated. A high temperature will result in a fast movement of a polaron under a deriving field. Crown

Original language	English (US)
Pages (from-to)	2189-2192
Number of pages	4
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	373
Issue number	25
DOIs	https://doi.org/10.1016/j.physleta.2009.04.048
State	Published - Jun 1 2009
Externally published	Yes

Keywords

Polaron dynamics
Poly-DNA
Temperature

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1016/j.physleta.2009.04.048

Cite this

@article{595c11429ea24f32afb0367bc741cb8b,

title = "Effect of temperature on polaron dynamics in poly-DNA",

abstract = "We investigate the effect of temperature on polaron dynamics in the framework of a tight-binding model. The dissociation of a polaron will become fast with the increase of temperature. There exists a crossover of the charge localization time from strong to weak temperature-dependence. Instead of the uniform motion at zero temperature, a polaron moves un-uniformly under a driven field at a finite temperature, which indicates a discrete hopping between base pairs. It is also found that the polaron motion is thermally activated. A high temperature will result in a fast movement of a polaron under a deriving field. Crown",

keywords = "Polaron dynamics, Poly-DNA, Temperature",

author = "Zhen Qu and Yuan Li and Wen Liu and Kang, {Da wei} and Xie, {Shi jie}",

year = "2009",

month = jun,

day = "1",

doi = "10.1016/j.physleta.2009.04.048",

language = "English (US)",

volume = "373",

pages = "2189--2192",

journal = "Physics Letters, Section A: General, Atomic and Solid State Physics",

issn = "0375-9601",

publisher = "Elsevier",

number = "25",

}

TY - JOUR

T1 - Effect of temperature on polaron dynamics in poly-DNA

AU - Qu, Zhen

AU - Li, Yuan

AU - Liu, Wen

AU - Kang, Da wei

AU - Xie, Shi jie

PY - 2009/6/1

Y1 - 2009/6/1

N2 - We investigate the effect of temperature on polaron dynamics in the framework of a tight-binding model. The dissociation of a polaron will become fast with the increase of temperature. There exists a crossover of the charge localization time from strong to weak temperature-dependence. Instead of the uniform motion at zero temperature, a polaron moves un-uniformly under a driven field at a finite temperature, which indicates a discrete hopping between base pairs. It is also found that the polaron motion is thermally activated. A high temperature will result in a fast movement of a polaron under a deriving field. Crown

AB - We investigate the effect of temperature on polaron dynamics in the framework of a tight-binding model. The dissociation of a polaron will become fast with the increase of temperature. There exists a crossover of the charge localization time from strong to weak temperature-dependence. Instead of the uniform motion at zero temperature, a polaron moves un-uniformly under a driven field at a finite temperature, which indicates a discrete hopping between base pairs. It is also found that the polaron motion is thermally activated. A high temperature will result in a fast movement of a polaron under a deriving field. Crown

KW - Polaron dynamics

KW - Poly-DNA

KW - Temperature

UR - http://www.scopus.com/inward/record.url?scp=65549165294&partnerID=8YFLogxK

U2 - 10.1016/j.physleta.2009.04.048

DO - 10.1016/j.physleta.2009.04.048

M3 - Article

AN - SCOPUS:65549165294

SN - 0375-9601

VL - 373

SP - 2189

EP - 2192

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 25

ER -

Effect of temperature on polaron dynamics in poly-DNA

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this