Adsorption of a Gaussian polymer in a periodic surface potential
Martin-Luther-Universität Halle-Wittenberg, Fachbereich
Physik D-06099 Halle, Germany
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