{ "id": "cond-mat/0501255", "version": "v1", "published": "2005-01-11T15:04:54.000Z", "updated": "2005-01-11T15:04:54.000Z", "title": "Stability of negative and positive trions in quantum wires", "authors": [ "B. Szafran", "T. Chwiej", "F. M. Peeters", "S. Bednarek", "J. Adamowski" ], "journal": "Phys. Rev. B 71, 235305 (2005)", "doi": "10.1103/PhysRevB.71.235305", "categories": [ "cond-mat.mes-hall" ], "abstract": "Binding energies of negative ($X^-$) and positive trions ($X^+$) in quantum wires are studied for strong quantum confinement of carriers which results in a numerical exactly solvable model. The relative electron and hole localization has a strong effect on the stability of trions. For equal hole and electron confinement, $X^+$ is more stable but a small imbalance of the particle localization towards a stronger hole localization e.g. due to its larger effective mass, leads to the interchange of $X^-$ and $X^+$ recombination lines in the photoluminescent spectrum as was recently observed experimentally. In case of larger $X^-$ stability, a magnetic field oriented parallel to the wire axis leads to a stronger increase of the $X^+$ binding energy resulting in a crossing of the $X^+$ and $X^-$ lines.", "revisions": [ { "version": "v1", "updated": "2005-01-11T15:04:54.000Z" } ], "analyses": { "keywords": [ "quantum wires", "positive trions", "stronger hole localization", "magnetic field oriented parallel", "strong quantum confinement" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }