{ "id": "1106.4418", "version": "v1", "published": "2011-06-22T11:19:44.000Z", "updated": "2011-06-22T11:19:44.000Z", "title": "The stability of the fractional quantum Hall effect in topological insulators", "authors": [ "Ashley M. DaSilva" ], "comment": "8 pages, 2 figures", "journal": "Solid State Communications 151, 1444 (2011)", "doi": "10.1016/j.ssc.2011.07.001", "categories": [ "cond-mat.mes-hall" ], "abstract": "With the recent observation of graphene-like Landau levels at the surface of topological insulators, the possibility of fractional quantum Hall effect, which is a fundamental signature of strong correlations, has become of interest. Some experiments have reported intra-Landau level structure that is suggestive of fractional quantum Hall effect. This paper discusses the feasibility of fractional quantum Hall effect from a theoretical perspective, and argues that while this effect should occur, ideally, in the $n=0$ and $|n|=1$ Landau levels, it is ruled out in higher $|n|$ Landau levels. Unlike graphene, the fractional quantum Hall effect in topological insulators is predicted to show an interesting asymmetry between $n=1$ and $n=-1$ Landau levels due to spin-orbit coupling.", "revisions": [ { "version": "v1", "updated": "2011-06-22T11:19:44.000Z" } ], "analyses": { "keywords": [ "fractional quantum hall effect", "topological insulators", "reported intra-landau level structure", "graphene-like landau levels", "fundamental signature" ], "tags": [ "journal article" ], "publication": { "journal": "Solid State Communications", "year": 2011, "month": "Oct", "volume": 151, "number": 20, "pages": 1444 }, "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011SSCom.151.1444D" } } }