| Issue |
Europhys. Lett.
Volume 58, Number 3, May 2002
|
|
|---|---|---|
| Page(s) | 368 - 374 | |
| Section | Atomic and molecular physics | |
| DOI | https://doi.org/10.1209/epl/i2002-00648-2 | |
| Published online | 01 August 2002 | |
Adsorption of a Gaussian polymer in a periodic surface potential
Martin-Luther-Universität Halle-Wittenberg, Fachbereich
Physik D-06099 Halle, Germany
Received:
19
November
2001
Accepted:
8
February
2002
We study the problem of adsorption of a Gaussian polymer in a weak
periodic surface potential. We have found that the localized
states form a band which is described by the quasimomentum, which
lies in the interval, 
, where a is
the period of the potential. 
increases with the
increase of the strength of the potential, and achieve at some
strength the edge of the Brillouin zone, where the polymer is
always localized. We have computed the transversal and the
longitudinal size of the adsorbed polymer and discuss
qualitatively the obtained results.
PACS: 36.20.-r – Macromolecules and polymer molecules / 82.35.Gh – Polymers on surfaces; adhesion / 73.20.-r – Electron states at surfaces and interfaces
© EDP Sciences, 2002
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