Charge trapping by solitions—A possible transport mechanism in macromolecular systems |
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Authors: | Angshutosh Khan Debajyoti Bhaumik Binayak Dutta-Roy |
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Institution: | (1) Physics Department, Ashutosh College, Calcutta, India;(2) Bose Institute, 93/1 Acharya Prafulla Chandra Road, 700 009 Calcutta, India;(3) Saha Institute of Nuclear Physics, 92 Acharya Prafulla Chandra Road, 700 009 Calcutta, India |
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Abstract: | Macromolecules and their aggregates possess polar modes which, when excited, cause deformations, which provoke in turn elastic
restoring forces. Even the simplest of such models (involving polarization and elastic modes along a chain) admit localized
excitations (solitons) endowed with a characteristic degree of stability; and these provide a mechanism for charge trapping
which may be of importance in the understanding of the elusively high efficiency of charge transfer over macroscopic distances
evidently involved in various biomolecular processes. |
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