{ "id": "1506.03141", "version": "v1", "published": "2015-06-10T00:50:07.000Z", "updated": "2015-06-10T00:50:07.000Z", "title": "Quantized topological magnetoelectric effect of the zero-plateau quantum anomalous Hall state", "authors": [ "Jing Wang", "Biao Lian", "Xiao-Liang Qi", "Shou-Cheng Zhang" ], "comment": "4.3 pages, 4 figures", "categories": [ "cond-mat.mes-hall" ], "abstract": "Topological magnetoelectric effect in a three-dimensional topological insulator is a novel phenomenon, where an electric field induces a magnetic field in the same direction, with a universal coefficient of proportionality quantized in units of $e^2/2h$. Here we propose that the topological magnetoelectric effect can be realized in the zero-plateau quantum anomalous Hall state of magnetic topological insulators or ferromagnet-topological insulator heterostructure. The finite-size effect is also studied numerically, where the magnetoelectric coefficient is shown to converge to a quantized value when the thickness of topological insulator film increases. We further propose a device setup to eliminate the non-topological contributions from the side surface.", "revisions": [ { "version": "v1", "updated": "2015-06-10T00:50:07.000Z" } ], "analyses": { "subjects": [ "73.43.-f", "73.20.-r", "85.75.-d" ], "keywords": [ "zero-plateau quantum anomalous hall state", "quantized topological magnetoelectric effect", "topological insulator" ], "publication": { "doi": "10.1103/PhysRevB.92.081107" }, "note": { "typesetting": "TeX", "pages": 3, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1375939 } } }