{ "id": "cond-mat/9903367", "version": "v3", "published": "1999-03-24T20:10:49.000Z", "updated": "1999-11-29T15:54:04.000Z", "title": "Metal-Insulator Transition in a 2-Dimensional System with an Easy Spin Axis", "authors": [ "V. Senz", "U. Doetsch", "U. Gennser", "T. Ihn", "T. Heinzel", "K. Ensslin", "R. Hartmann", "D. Gruetzmacher" ], "comment": "4 pages (RevTeX), 3 figures (postscript) replaced by version published in special issue of Annalen d. Physik", "journal": "Annalen d. Physik, 8, Special Issue, 237-240, 1999", "categories": [ "cond-mat.mes-hall" ], "abstract": "The low-temperature resistivity of a SiGe 2-dimensional hole gas has been studied using the gate controlled carrier density as a parameter. A metal-insulator transition is seen both in the temperature and in the electric field behaviour. Values of 1 for the dynamical exponent and 2.85 for the correlation length exponent are obtained from scaling plots. No quenching of the metallic phase in a parallel magnetic field is observed. Since in our system there is an easy axis for magnetization, this result supports the hypothesis that the transition is related to spin interactions.", "revisions": [ { "version": "v3", "updated": "1999-11-29T15:54:04.000Z" } ], "analyses": { "keywords": [ "metal-insulator transition", "spin axis", "gate controlled carrier density", "correlation length exponent", "parallel magnetic field" ], "tags": [ "journal article" ], "note": { "typesetting": "RevTeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "1999cond.mat..3367S" } } }