Soft polar molecular layers adsorbed on charged nanowire
A selfconsistent theoretical approach is developed for describing an uncompensated charge carrier inside a perfect semiconductor quantum wire covered with a soft molecular layer. Deformation of the molecular layer under inhomogeneous carrier electric field is described in the model of liquid cry...
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| Datum: | 2004 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Інститут фізики конденсованих систем НАН України
2004
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| Schriftenreihe: | Condensed Matter Physics |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/119011 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Soft polar molecular layers adsorbed on charged nanowire / V.A. Lykah, E.S. Syrkin // Condensed Matter Physics. — 2004. — Т. 7, № 4(40). — С. 805–812. — Бібліогр.: 12 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | A selfconsistent theoretical approach is developed for describing an uncompensated
charge carrier inside a perfect semiconductor quantum wire
covered with a soft molecular layer. Deformation of the molecular layer under
inhomogeneous carrier electric field is described in the model of liquid
crystal with intrinsic electric dipole. The longitudinal quantization of a
charge carrier is reduced to the spectral problem for nonlinear Schrodinger
equation which is solved in terms of elliptic functions. The features of behavior
of the system are as follows: the higher is the interaction, the higher
is the nonlinearity; the lowest quantum levels experience the highest nonlinearity;
the effect should be more pronounced for heavier holes. Under the
increase of interaction the carrier is localized. The occurrence of localized
states could be responsible for the experimentally observed decrease of
conductivity in nanowires. |
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