{ "id": "cond-mat/9910042", "version": "v1", "published": "1999-10-04T21:43:50.000Z", "updated": "1999-10-04T21:43:50.000Z", "title": "Absolute Negative Conductivity and Spontaneous Current Generation in Semiconductor Superlattices with Hot Electrons", "authors": [ "Ethan H. Cannon", "Feodor V. Kusmartsev", "Kirill N. Alekseev", "David K. Campbell" ], "doi": "10.1103/PhysRevLett.85.1302", "categories": [ "cond-mat.mes-hall" ], "abstract": "We study electron transport through a semiconductor superlattice subject to an electric field parallel to and a magnetic field perpendicular to the growth axis. Using a single miniband, semiclassical balance equation model with both elastic and inelastic scattering, we find that (1) the current-voltage characteristic becomes multistable in a large magnetic field; and (2) ``hot'' electrons display novel features in their current-voltage characteristics, including absolute negative conductivity (ANC) and, for sufficiently strong magnetic fields, a spontaneous dc current at zero bias. We discuss possible experimental situations providing the necessary hot electrons to observe the predicted ANC and spontaneous dc current generation.", "revisions": [ { "version": "v1", "updated": "1999-10-04T21:43:50.000Z" } ], "analyses": { "keywords": [ "absolute negative conductivity", "spontaneous current generation", "semiconductor superlattice", "hot electrons", "magnetic field" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }