{ "id": "1502.03047", "version": "v1", "published": "2015-02-10T19:33:25.000Z", "updated": "2015-02-10T19:33:25.000Z", "title": "Fermi Contour Disintegration of Quasi-2D Electrons in Parallel Magnetic Fields", "authors": [ "M. A. Mueed", "D. Kamburov", "M. Shayegan", "L. N. Pfeiffer", "K. W. West", "K. W. Baldwin", "R. Winkler" ], "categories": [ "cond-mat.mes-hall" ], "abstract": "In a quasi two-dimensional electron system with non-zero layer thickness, a parallel magnetic field (B||) can couple to the out-of-plane electron motion and lead to a severe distortion and eventual disintegration of the Fermi contour. Here we directly and quantitatively probe this evolution through commensurability and Shubnikov-de Haas measurements on electrons confined to a 40-nm-wide GaAs (001) quantum well. We are able to observe the Fermi contour disintegration phenomenon, in good agreement with the results of semi-classical calculations. Experimentally we also observe intriguing features, suggesting magnetic-breakdown-type behavior when the Fermi contour disintegrates.", "revisions": [ { "version": "v1", "updated": "2015-02-10T19:33:25.000Z" } ], "analyses": { "keywords": [ "parallel magnetic field", "quasi-2d electrons", "quasi two-dimensional electron system", "fermi contour disintegration phenomenon", "out-of-plane electron motion" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv150203047M" } } }