{ "id": "cond-mat/0509448", "version": "v2", "published": "2005-09-16T15:57:47.000Z", "updated": "2006-04-05T16:02:32.000Z", "title": "Spontaneous spin polarization in quantum point contacts", "authors": [ "L. P. Rokhinson", "L. N. Pfeiffer", "K. W. West" ], "comment": "revised discussion and data analysis, accepted to PRL", "doi": "10.1103/PhysRevLett.96.156602", "categories": [ "cond-mat.mes-hall" ], "abstract": "We use spatial spin separation by a magnetic focusing technique to probe the polarization of quantum point contacts. The point contacts are fabricated from p-type GaAs/AlGaAs heterostructures. A finite polarization is measured in the low-density regime, when the conductance of a point contact is tuned to <2e^2/h. Polarization is stronger in samples with a well defined ``0.7 structure''", "revisions": [ { "version": "v2", "updated": "2006-04-05T16:02:32.000Z" } ], "analyses": { "keywords": [ "quantum point contacts", "spontaneous spin polarization", "p-type gaas/algaas heterostructures", "spatial spin separation", "magnetic focusing technique" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }