{ "id": "cond-mat/9702150", "version": "v1", "published": "1997-02-17T15:07:27.000Z", "updated": "1997-02-17T15:07:27.000Z", "title": "Transport relaxation rate of a two-dimensional electron gas: Surface acoustic-phonon contribution", "authors": [ "Andreas Knaebchen" ], "comment": "3 pages, no figures", "categories": [ "cond-mat.mes-hall" ], "abstract": "The transport relaxation rate 1/tau of a two-dimensional electron gas due to scattering by thermally excited surface acoustic phonons is calculated. The temperature dependence of 1/tau is found to be linear in T for high temperatures, but decreases like T^alpha as T drops below the Bloch-Gruneisen temperature for surface sound; alpha=7 (5) for the deformation-potential (piezoelectric) interaction. The effect of a finite distance between the crystal surface and the two-dimensional electron gas is discussed. The results are compared with those that have been calculated for three- and two-dimensional phonons interacting with a two-dimensional electron gas.", "revisions": [ { "version": "v1", "updated": "1997-02-17T15:07:27.000Z" } ], "analyses": { "keywords": [ "two-dimensional electron gas", "transport relaxation rate", "surface acoustic-phonon contribution", "thermally excited surface acoustic phonons" ], "note": { "typesetting": "TeX", "pages": 3, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "1997cond.mat..2150K" } } }