2011
DOI: 10.1134/s1087659611010068
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A polaron in molecular chains with dispersion

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Cited by 4 publications
(3 citation statements)
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“…Theoretical estimates [10,22] of mobility variations in chains when dispersion changes (without taking temperature into account and in the continual approximation) giveµ (ξ = 6.4 × 10 -5 )/µ (ξ = 0) ≈ 2.8 for DNA parameters. According to direct simulation results (see table and Fig.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Theoretical estimates [10,22] of mobility variations in chains when dispersion changes (without taking temperature into account and in the continual approximation) giveµ (ξ = 6.4 × 10 -5 )/µ (ξ = 0) ≈ 2.8 for DNA parameters. According to direct simulation results (see table and Fig.…”
Section: Resultsmentioning
confidence: 99%
“…For intramolecular vibrations (interaction constant with stretching and contraction H-bond deformations), K ≈ 0.06 eV/Å 2 was obtained. The ratio Pushchino, Moscow oblast, Russia e-mail: lak@impb.psn.ru; fialka@impb.psn.ru between the parameter values corresponding to the poly(G)/poly(C) duplex [10] calculated theoretically with and without taking dispersion (stacking) into account was µ/µ 0 ≈ 2.79 (µ 0 is the hole mobility in a polyguanine chain without dispersion, and µ is the mobility with dispersion taken into account). This is evidence of sensitivity of the conduction properties of DNA to the stacking interaction value.…”
Section: Introductionmentioning
confidence: 99%
“…Рассмотрен случай полярона малого радиуса, когда в невозмущенной цепочке заряд с вероятностью, близкой к единице, локализован на одном сайте; это реализуется, например, при параметрах однородных адениновых фрагментов ДНК. В этом случае при нулевой температуре полярон неподвижен, как показывают теоретические выкладки [10] об отсутствии зоны проводимости у полярона малого радиуса и результаты вычислительных экспериментов [11]. Однако исследователи полагали, что при конечной температуре перенос заряда может происходить как серия поляронных прыжков, вызванных температурными флуктуациями [12][13][14][15][16].…”
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