{ "id": "1707.04154", "version": "v1", "published": "2017-07-13T14:51:41.000Z", "updated": "2017-07-13T14:51:41.000Z", "title": "Electric control of the bandgap in quantum wells with band-inverted junctions", "authors": [ "A. Diaz-Fernandez", "Leonor Chico", "F. Dominguez-Adame" ], "categories": [ "cond-mat.mes-hall" ], "abstract": "In semiconductor heterojunctions with band-inversion, interface states are properly described by a two-band model, predicting the appearance of a Dirac cone in single junctions. However, in quantum wells the interface dispersion is quadratic in momentum and the energy spectrum presents a gap. We show that the interface gap shrinks under an electric field parallel to the growth direction. Therefore, the interface gap can be dynamically tuned in experiments on double-gated quantum wells based on band-inverted compounds.", "revisions": [ { "version": "v1", "updated": "2017-07-13T14:51:41.000Z" } ], "analyses": { "keywords": [ "electric control", "band-inverted junctions", "electric field parallel", "interface gap shrinks", "interface states" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }